Algebra-1

To determine which ratio forms a proportion with 9:12, we need to check which of the given ratios is equal to 9:12. We can simplify each option and compare them directly.

Option A, 12:9

This is the reverse of 9:12 and cannot be simplified to match 9:12, so it is not proportional to 9:12.

Option B, 24:18

Simplify 24:18 by dividing both terms by 6:

24:18 = 4:3

24:18 simplifies to 4:3. This is not equal to 9:12, so it is not proportional to 9:12.

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