Home / 13,414.57-20,121.85-4,180.57

Finding the Fourth Proportional to 13,414.57, 20,121.85 and 4,180.57

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Solution

The fourth proportional to 13,414.57, 20,121.85 and 4,180.57 is: 6,270.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.57 : 20,121.85 = 4,180.57 : x
  2. Step 2: Convert to fraction form
    13,414.57/20,121.85 = 4,180.57/x
  3. Step 3: Cross multiply
    13,414.57x = 20,121.85 × 4,180.57
  4. Step 4: Simplify right side
    13,414.57x = 84,120,680.94
  5. Step 5: Solve for x
    x = 84,120,680.94/13,414.57
  6. Step 6: Final answer
    x = 6,270.85

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Similar ratio
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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.