1. The ratio of x to y is 1:2, which is not proportional to 2:4.
2. The ratio of x to y is 3:6, which is proportional to 6:12.
3. The ratio of x to y is 2:5, which is not proportional to 4:10.
4. The ratio of x to y is 4:8, which is proportional to 8:16.
5. The ratio of x to y is 3:6, which is proportional to 6:12.
6. The ratio of x to y is 2:4, which is proportional to 4:8.
7. The ratio of x to y is 3:6, which is proportional to 6:12.
8. The ratio of x to y is 2:4, which is proportional to 4:8.
9. The ratio of x to y is 3:6, which is proportional to 6:12.
10. The ratio of x to y is 2:4, which is proportional to 4:8.
Parent Tip: Review the logic above to help your child master the concept of proportional and nonproportional relationships worksheet answers.