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Finding the Third Proportional to 5,727 and 12,389

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Solution

The third proportional to 5,727 and 12,389 is: 26,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,727 : 12,389 = 12,389 : x
  2. Step 2: Convert to fraction form
    5,727/12,389 = 12,389/x
  3. Step 3: Cross multiply
    5,727x = 12,389 × 12,389
  4. Step 4: Simplify right side
    5,727x = 153,487,321
  5. Step 5: Solve for x
    x = 153,487,321/5,727
  6. Step 6: Final answer
    x = 26,800.65

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.