Home / 8,781.66-13,177.69-3,238.90

Finding the Fourth Proportional to 8,781.66, 13,177.69 and 3,238.90

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Solution

The fourth proportional to 8,781.66, 13,177.69 and 3,238.90 is: 4,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.66 : 13,177.69 = 3,238.90 : x
  2. Step 2: Convert to fraction form
    8,781.66/13,177.69 = 3,238.90/x
  3. Step 3: Cross multiply
    8,781.66x = 13,177.69 × 3,238.90
  4. Step 4: Simplify right side
    8,781.66x = 42,681,179.10
  5. Step 5: Solve for x
    x = 42,681,179.10/8,781.66
  6. Step 6: Final answer
    x = 4,860.26

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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.