Home / 8,781.26-13,171.91-3,587.13

Finding the Fourth Proportional to 8,781.26, 13,171.91 and 3,587.13

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Solution

The fourth proportional to 8,781.26, 13,171.91 and 3,587.13 is: 5,380.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.26 : 13,171.91 = 3,587.13 : x
  2. Step 2: Convert to fraction form
    8,781.26/13,171.91 = 3,587.13/x
  3. Step 3: Cross multiply
    8,781.26x = 13,171.91 × 3,587.13
  4. Step 4: Simplify right side
    8,781.26x = 47,249,335.58
  5. Step 5: Solve for x
    x = 47,249,335.58/8,781.26
  6. Step 6: Final answer
    x = 5,380.70

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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.