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Finding the Third Proportional to 12,543 and 16,651

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Solution

The third proportional to 12,543 and 16,651 is: 22,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543 : 16,651 = 16,651 : x
  2. Step 2: Convert to fraction form
    12,543/16,651 = 16,651/x
  3. Step 3: Cross multiply
    12,543x = 16,651 × 16,651
  4. Step 4: Simplify right side
    12,543x = 277,255,801
  5. Step 5: Solve for x
    x = 277,255,801/12,543
  6. Step 6: Final answer
    x = 22,104.42

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.