Home / 15,013.20-22,489.05-8,425.55

Finding the Fourth Proportional to 15,013.20, 22,489.05 and 8,425.55

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Solution

The fourth proportional to 15,013.20, 22,489.05 and 8,425.55 is: 12,621.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013.20 : 22,489.05 = 8,425.55 : x
  2. Step 2: Convert to fraction form
    15,013.20/22,489.05 = 8,425.55/x
  3. Step 3: Cross multiply
    15,013.20x = 22,489.05 × 8,425.55
  4. Step 4: Simplify right side
    15,013.20x = 189,482,502.78
  5. Step 5: Solve for x
    x = 189,482,502.78/15,013.20
  6. Step 6: Final answer
    x = 12,621.06

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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.