Practice Proportional Reasoning in Math

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

The ability to recognize and work with multiplicative relationships between quantities. If one quantity doubles, a proportional quantity also doubles — the ratio stays constant.

If 3 pizzas feed 12 people, how many feed 20? Think multiplication, not addition.

Example 1

easy
If 3 notebooks cost \$7.50, how much do 7 notebooks cost?

Example 2

medium
A recipe calls for 2 cups of flour for every 3 cups of sugar. If you use 9 cups of sugar, how many cups of flour do you need?

Example 3

medium
A map uses a scale of 1 cm : 25 km. Two cities are 7.5 cm apart on the map. What is the actual distance?

Example 4

easy
A recipe that serves 4 people uses 10 cups of flour. How many cups are needed to serve 10 people?
← Back to Proportional Reasoning Worked Examples Formula Explained