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Finding the Third Proportional to 6,387 and 12,612

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Solution

The third proportional to 6,387 and 12,612 is: 24,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387 : 12,612 = 12,612 : x
  2. Step 2: Convert to fraction form
    6,387/12,612 = 12,612/x
  3. Step 3: Cross multiply
    6,387x = 12,612 × 12,612
  4. Step 4: Simplify right side
    6,387x = 159,062,544
  5. Step 5: Solve for x
    x = 159,062,544/6,387
  6. Step 6: Final answer
    x = 24,904.11

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.