Answer:
Your age is not proportional to your cousin's age.
Step-by-step explanation:
If you are 13 y/o and your cousin is 19 y/o, the ratio is:
13
---
19
After, for example, four years, the calculus would be:
13+4= 17
-----
19+4= 23
This equals: 13/17≠19/23. Therefore, it's not proportional.