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Finding the Fourth Proportional to 8,134.80, 12,193.52 and 5,819.28

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Solution

The fourth proportional to 8,134.80, 12,193.52 and 5,819.28 is: 8,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,134.80 : 12,193.52 = 5,819.28 : x
  2. Step 2: Convert to fraction form
    8,134.80/12,193.52 = 5,819.28/x
  3. Step 3: Cross multiply
    8,134.80x = 12,193.52 × 5,819.28
  4. Step 4: Simplify right side
    8,134.80x = 70,957,507.07
  5. Step 5: Solve for x
    x = 70,957,507.07/8,134.80
  6. Step 6: Final answer
    x = 8,722.71

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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.