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Finding the Third Proportional to 7,715 and 16,469

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Solution

The third proportional to 7,715 and 16,469 is: 35,155.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715 : 16,469 = 16,469 : x
  2. Step 2: Convert to fraction form
    7,715/16,469 = 16,469/x
  3. Step 3: Cross multiply
    7,715x = 16,469 × 16,469
  4. Step 4: Simplify right side
    7,715x = 271,227,961
  5. Step 5: Solve for x
    x = 271,227,961/7,715
  6. Step 6: Final answer
    x = 35,155.92

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.