Home / 8,781.80-13,171.32-3,237.80

Finding the Fourth Proportional to 8,781.80, 13,171.32 and 3,237.80

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Solution

The fourth proportional to 8,781.80, 13,171.32 and 3,237.80 is: 4,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.80 : 13,171.32 = 3,237.80 : x
  2. Step 2: Convert to fraction form
    8,781.80/13,171.32 = 3,237.80/x
  3. Step 3: Cross multiply
    8,781.80x = 13,171.32 × 3,237.80
  4. Step 4: Simplify right side
    8,781.80x = 42,646,099.90
  5. Step 5: Solve for x
    x = 42,646,099.90/8,781.80
  6. Step 6: Final answer
    x = 4,856.19

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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.