Home / 13,572.55-20,358.83-5,251.42

Finding the Fourth Proportional to 13,572.55, 20,358.83 and 5,251.42

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Solution

The fourth proportional to 13,572.55, 20,358.83 and 5,251.42 is: 7,877.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.55 : 20,358.83 = 5,251.42 : x
  2. Step 2: Convert to fraction form
    13,572.55/20,358.83 = 5,251.42/x
  3. Step 3: Cross multiply
    13,572.55x = 20,358.83 × 5,251.42
  4. Step 4: Simplify right side
    13,572.55x = 106,912,767.04
  5. Step 5: Solve for x
    x = 106,912,767.04/13,572.55
  6. Step 6: Final answer
    x = 7,877.13

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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.