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Finding the Third Proportional to 11,613 and 12,717

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Solution

The third proportional to 11,613 and 12,717 is: 13,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,613 : 12,717 = 12,717 : x
  2. Step 2: Convert to fraction form
    11,613/12,717 = 12,717/x
  3. Step 3: Cross multiply
    11,613x = 12,717 × 12,717
  4. Step 4: Simplify right side
    11,613x = 161,722,089
  5. Step 5: Solve for x
    x = 161,722,089/11,613
  6. Step 6: Final answer
    x = 13,925.95

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.