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Finding the Fourth Proportional to 8,169.68, 11,262.06 and 6,375.12

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Solution

The fourth proportional to 8,169.68, 11,262.06 and 6,375.12 is: 8,788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.68 : 11,262.06 = 6,375.12 : x
  2. Step 2: Convert to fraction form
    8,169.68/11,262.06 = 6,375.12/x
  3. Step 3: Cross multiply
    8,169.68x = 11,262.06 × 6,375.12
  4. Step 4: Simplify right side
    8,169.68x = 71,796,983.95
  5. Step 5: Solve for x
    x = 71,796,983.95/8,169.68
  6. Step 6: Final answer
    x = 8,788.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.