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Finding the Third Proportional to 5,407 and 12,713

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Solution

The third proportional to 5,407 and 12,713 is: 29,890.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407 : 12,713 = 12,713 : x
  2. Step 2: Convert to fraction form
    5,407/12,713 = 12,713/x
  3. Step 3: Cross multiply
    5,407x = 12,713 × 12,713
  4. Step 4: Simplify right side
    5,407x = 161,620,369
  5. Step 5: Solve for x
    x = 161,620,369/5,407
  6. Step 6: Final answer
    x = 29,890.95

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.