Home / 9,115.20-12,584.43-5,976.85

Finding the Fourth Proportional to 9,115.20, 12,584.43 and 5,976.85

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Solution

The fourth proportional to 9,115.20, 12,584.43 and 5,976.85 is: 8,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.20 : 12,584.43 = 5,976.85 : x
  2. Step 2: Convert to fraction form
    9,115.20/12,584.43 = 5,976.85/x
  3. Step 3: Cross multiply
    9,115.20x = 12,584.43 × 5,976.85
  4. Step 4: Simplify right side
    9,115.20x = 75,215,250.45
  5. Step 5: Solve for x
    x = 75,215,250.45/9,115.20
  6. Step 6: Final answer
    x = 8,251.63

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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.