Home / 8,247.28-12,372.68-4,738.88

Finding the Fourth Proportional to 8,247.28, 12,372.68 and 4,738.88

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Solution

The fourth proportional to 8,247.28, 12,372.68 and 4,738.88 is: 7,109.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.28 : 12,372.68 = 4,738.88 : x
  2. Step 2: Convert to fraction form
    8,247.28/12,372.68 = 4,738.88/x
  3. Step 3: Cross multiply
    8,247.28x = 12,372.68 × 4,738.88
  4. Step 4: Simplify right side
    8,247.28x = 58,632,645.80
  5. Step 5: Solve for x
    x = 58,632,645.80/8,247.28
  6. Step 6: Final answer
    x = 7,109.33

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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.