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Finding the Third Proportional to 8,782 and 16,319

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Solution

The third proportional to 8,782 and 16,319 is: 30,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782 : 16,319 = 16,319 : x
  2. Step 2: Convert to fraction form
    8,782/16,319 = 16,319/x
  3. Step 3: Cross multiply
    8,782x = 16,319 × 16,319
  4. Step 4: Simplify right side
    8,782x = 266,309,761
  5. Step 5: Solve for x
    x = 266,309,761/8,782
  6. Step 6: Final answer
    x = 30,324.50

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.