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Finding the Fourth Proportional to 8,363.97, 12,530.45 and 5,987.15

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Solution

The fourth proportional to 8,363.97, 12,530.45 and 5,987.15 is: 8,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.97 : 12,530.45 = 5,987.15 : x
  2. Step 2: Convert to fraction form
    8,363.97/12,530.45 = 5,987.15/x
  3. Step 3: Cross multiply
    8,363.97x = 12,530.45 × 5,987.15
  4. Step 4: Simplify right side
    8,363.97x = 75,021,591.13
  5. Step 5: Solve for x
    x = 75,021,591.13/8,363.97
  6. Step 6: Final answer
    x = 8,969.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.