Home / 8,519.52-12,781.44-4,357.92

Finding the Fourth Proportional to 8,519.52, 12,781.44 and 4,357.92

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Solution

The fourth proportional to 8,519.52, 12,781.44 and 4,357.92 is: 6,537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.52 : 12,781.44 = 4,357.92 : x
  2. Step 2: Convert to fraction form
    8,519.52/12,781.44 = 4,357.92/x
  3. Step 3: Cross multiply
    8,519.52x = 12,781.44 × 4,357.92
  4. Step 4: Simplify right side
    8,519.52x = 55,700,493.00
  5. Step 5: Solve for x
    x = 55,700,493.00/8,519.52
  6. Step 6: Final answer
    x = 6,537.98

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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.