Home / 15,149.20-22,720.26-5,785.78

Finding the Fourth Proportional to 15,149.20, 22,720.26 and 5,785.78

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Solution

The fourth proportional to 15,149.20, 22,720.26 and 5,785.78 is: 8,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,149.20 : 22,720.26 = 5,785.78 : x
  2. Step 2: Convert to fraction form
    15,149.20/22,720.26 = 5,785.78/x
  3. Step 3: Cross multiply
    15,149.20x = 22,720.26 × 5,785.78
  4. Step 4: Simplify right side
    15,149.20x = 131,454,425.90
  5. Step 5: Solve for x
    x = 131,454,425.90/15,149.20
  6. Step 6: Final answer
    x = 8,677.32

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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.