Home / 8,761.92-13,147.20-6,181.44

Finding the Fourth Proportional to 8,761.92, 13,147.20 and 6,181.44

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Solution

The fourth proportional to 8,761.92, 13,147.20 and 6,181.44 is: 9,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.92 : 13,147.20 = 6,181.44 : x
  2. Step 2: Convert to fraction form
    8,761.92/13,147.20 = 6,181.44/x
  3. Step 3: Cross multiply
    8,761.92x = 13,147.20 × 6,181.44
  4. Step 4: Simplify right side
    8,761.92x = 81,268,627.97
  5. Step 5: Solve for x
    x = 81,268,627.97/8,761.92
  6. Step 6: Final answer
    x = 9,275.21

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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.