Home / 8,178.38-11,286.40-4,452.62

Finding the Fourth Proportional to 8,178.38, 11,286.40 and 4,452.62

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Solution

The fourth proportional to 8,178.38, 11,286.40 and 4,452.62 is: 6,144.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.38 : 11,286.40 = 4,452.62 : x
  2. Step 2: Convert to fraction form
    8,178.38/11,286.40 = 4,452.62/x
  3. Step 3: Cross multiply
    8,178.38x = 11,286.40 × 4,452.62
  4. Step 4: Simplify right side
    8,178.38x = 50,253,982.80
  5. Step 5: Solve for x
    x = 50,253,982.80/8,178.38
  6. Step 6: Final answer
    x = 6,144.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.