Home / 8,122.38-12,176.28-6,744.57

Finding the Fourth Proportional to 8,122.38, 12,176.28 and 6,744.57

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Solution

The fourth proportional to 8,122.38, 12,176.28 and 6,744.57 is: 10,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.38 : 12,176.28 = 6,744.57 : x
  2. Step 2: Convert to fraction form
    8,122.38/12,176.28 = 6,744.57/x
  3. Step 3: Cross multiply
    8,122.38x = 12,176.28 × 6,744.57
  4. Step 4: Simplify right side
    8,122.38x = 82,123,772.80
  5. Step 5: Solve for x
    x = 82,123,772.80/8,122.38
  6. Step 6: Final answer
    x = 10,110.80

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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.