Home / 13,458.53-20,170.17-5,551.85

Finding the Fourth Proportional to 13,458.53, 20,170.17 and 5,551.85

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Solution

The fourth proportional to 13,458.53, 20,170.17 and 5,551.85 is: 8,320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.53 : 20,170.17 = 5,551.85 : x
  2. Step 2: Convert to fraction form
    13,458.53/20,170.17 = 5,551.85/x
  3. Step 3: Cross multiply
    13,458.53x = 20,170.17 × 5,551.85
  4. Step 4: Simplify right side
    13,458.53x = 111,981,657.46
  5. Step 5: Solve for x
    x = 111,981,657.46/13,458.53
  6. Step 6: Final answer
    x = 8,320.50

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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.