Home / 8,781.66-13,174.92-3,591.18

Finding the Fourth Proportional to 8,781.66, 13,174.92 and 3,591.18

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Solution

The fourth proportional to 8,781.66, 13,174.92 and 3,591.18 is: 5,387.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.66 : 13,174.92 = 3,591.18 : x
  2. Step 2: Convert to fraction form
    8,781.66/13,174.92 = 3,591.18/x
  3. Step 3: Cross multiply
    8,781.66x = 13,174.92 × 3,591.18
  4. Step 4: Simplify right side
    8,781.66x = 47,313,509.21
  5. Step 5: Solve for x
    x = 47,313,509.21/8,781.66
  6. Step 6: Final answer
    x = 5,387.76

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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.