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Finding the Third Proportional to 8,799 and 13,686

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Solution

The third proportional to 8,799 and 13,686 is: 21,287.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799 : 13,686 = 13,686 : x
  2. Step 2: Convert to fraction form
    8,799/13,686 = 13,686/x
  3. Step 3: Cross multiply
    8,799x = 13,686 × 13,686
  4. Step 4: Simplify right side
    8,799x = 187,306,596
  5. Step 5: Solve for x
    x = 187,306,596/8,799
  6. Step 6: Final answer
    x = 21,287.26

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.