Home / 12,251.52-18,379.44-5,685.12

Finding the Fourth Proportional to 12,251.52, 18,379.44 and 5,685.12

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Solution

The fourth proportional to 12,251.52, 18,379.44 and 5,685.12 is: 8,528.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.52 : 18,379.44 = 5,685.12 : x
  2. Step 2: Convert to fraction form
    12,251.52/18,379.44 = 5,685.12/x
  3. Step 3: Cross multiply
    12,251.52x = 18,379.44 × 5,685.12
  4. Step 4: Simplify right side
    12,251.52x = 104,489,321.93
  5. Step 5: Solve for x
    x = 104,489,321.93/12,251.52
  6. Step 6: Final answer
    x = 8,528.68

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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.