Home / 8,115.27-12,163.14-5,305.43

Finding the Fourth Proportional to 8,115.27, 12,163.14 and 5,305.43

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Solution

The fourth proportional to 8,115.27, 12,163.14 and 5,305.43 is: 7,951.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.27 : 12,163.14 = 5,305.43 : x
  2. Step 2: Convert to fraction form
    8,115.27/12,163.14 = 5,305.43/x
  3. Step 3: Cross multiply
    8,115.27x = 12,163.14 × 5,305.43
  4. Step 4: Simplify right side
    8,115.27x = 64,530,627.03
  5. Step 5: Solve for x
    x = 64,530,627.03/8,115.27
  6. Step 6: Final answer
    x = 7,951.75

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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.