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Finding the Third Proportional to 6,387 and 13,957

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Solution

The third proportional to 6,387 and 13,957 is: 30,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387 : 13,957 = 13,957 : x
  2. Step 2: Convert to fraction form
    6,387/13,957 = 13,957/x
  3. Step 3: Cross multiply
    6,387x = 13,957 × 13,957
  4. Step 4: Simplify right side
    6,387x = 194,797,849
  5. Step 5: Solve for x
    x = 194,797,849/6,387
  6. Step 6: Final answer
    x = 30,499.12

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.