Home / 8,115.52-12,171.66-2,567.92

Finding the Fourth Proportional to 8,115.52, 12,171.66 and 2,567.92

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Solution

The fourth proportional to 8,115.52, 12,171.66 and 2,567.92 is: 3,851.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.52 : 12,171.66 = 2,567.92 : x
  2. Step 2: Convert to fraction form
    8,115.52/12,171.66 = 2,567.92/x
  3. Step 3: Cross multiply
    8,115.52x = 12,171.66 × 2,567.92
  4. Step 4: Simplify right side
    8,115.52x = 31,255,849.15
  5. Step 5: Solve for x
    x = 31,255,849.15/8,115.52
  6. Step 6: Final answer
    x = 3,851.37

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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.