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Finding the Third Proportional to 8,814 and 13,659

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Solution

The third proportional to 8,814 and 13,659 is: 21,167.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814 : 13,659 = 13,659 : x
  2. Step 2: Convert to fraction form
    8,814/13,659 = 13,659/x
  3. Step 3: Cross multiply
    8,814x = 13,659 × 13,659
  4. Step 4: Simplify right side
    8,814x = 186,568,281
  5. Step 5: Solve for x
    x = 186,568,281/8,814
  6. Step 6: Final answer
    x = 21,167.27

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.