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Finding the Third Proportional to 15,171 and 16,629

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Solution

The third proportional to 15,171 and 16,629 is: 18,227.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171 : 16,629 = 16,629 : x
  2. Step 2: Convert to fraction form
    15,171/16,629 = 16,629/x
  3. Step 3: Cross multiply
    15,171x = 16,629 × 16,629
  4. Step 4: Simplify right side
    15,171x = 276,523,641
  5. Step 5: Solve for x
    x = 276,523,641/15,171
  6. Step 6: Final answer
    x = 18,227.12

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.