Home / 8,922.38-13,387.41-4,761.20

Finding the Fourth Proportional to 8,922.38, 13,387.41 and 4,761.20

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Solution

The fourth proportional to 8,922.38, 13,387.41 and 4,761.20 is: 7,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.38 : 13,387.41 = 4,761.20 : x
  2. Step 2: Convert to fraction form
    8,922.38/13,387.41 = 4,761.20/x
  3. Step 3: Cross multiply
    8,922.38x = 13,387.41 × 4,761.20
  4. Step 4: Simplify right side
    8,922.38x = 63,740,169.96
  5. Step 5: Solve for x
    x = 63,740,169.96/8,922.38
  6. Step 6: Final answer
    x = 7,143.86

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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.