Solve a proportion

Answer Key - Grade 7 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Noah's garden hose fills 22 gallons in 6 minutes. How many gallons does it fill in 9 minutes?

   33
2. 2.

   Pia's potting mix uses 10 cups of compost for every 6 cups of sand (it smells earthy). How many cups of compost go with 9 cups of sand?

   15
3. 3.

   Esme's smoothie uses 6 bananas for every 8 strawberries. How many bananas go with 12 strawberries?

   9
4. 4.

   Tala's pancakes use 4 cups of flour for every 10 cups of milk. How many cups of flour go with 15 cups of milk?

   6
5. 5.

   Bo's class garden has 10 pea plants for every 8 bean plants. How many pea plants go with 12 bean plants?

   15
6. 6.

   6 : 4 = 15 : ?. The ? is the number to find. Milo's paper-heart chain keeps one ratio of red hearts to pink hearts all the way along. Which number goes in the box?

   10
7. 7.

   14 : 10 = 21 : ?. The ? is the number to find. Jun's orange drink keeps the same ratio of orange juice to water in every pitcher. Which number goes in the box?

   15
8. 8.

   15 : 9 = 20 : ?. The ? is the number to find. Ren reads at a steady speed, so the ratio of minutes to pages never changes. Which number goes in the box?

   12

9. Read this first

   Use the table

   minutes	gallons
   6	9
   8	?
   16	24

10. 9.

    Kira fills watering cans from a circle at a steady rate. The table shows minutes and gallons. How many gallons go with 8 minutes?

    12
11. 10.

    Tala's bean plant grows at a steady rate. The table shows days and inches. How many inches does it grow in 18 days?

    12