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Finding the Third Proportional to 7,663 and 11,717

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Solution

The third proportional to 7,663 and 11,717 is: 17,915.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,663 : 11,717 = 11,717 : x
  2. Step 2: Convert to fraction form
    7,663/11,717 = 11,717/x
  3. Step 3: Cross multiply
    7,663x = 11,717 × 11,717
  4. Step 4: Simplify right side
    7,663x = 137,288,089
  5. Step 5: Solve for x
    x = 137,288,089/7,663
  6. Step 6: Final answer
    x = 17,915.71

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.