Finding the Third Proportional to 13,689.75 and 15,129.75
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Solution
The third proportional to 13,689.75 and 15,129.75 is: 16,721.22
Step by Step Solution
- Step 1: Write the proportion equation
13,689.75 : 15,129.75 = 15,129.75 : x - Step 2: Convert to fraction form
13,689.75/15,129.75 = 15,129.75/x - Step 3: Cross multiply
13,689.75x = 15,129.75 × 15,129.75 - Step 4: Simplify right side
13,689.75x = 228,909,335.06 - Step 5: Solve for x
x = 228,909,335.06/13,689.75 - Step 6: Final answer
x = 16,721.22
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These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.