Home / 12,561.12-18,841.20-5,067.92

Finding the Fourth Proportional to 12,561.12, 18,841.20 and 5,067.92

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Solution

The fourth proportional to 12,561.12, 18,841.20 and 5,067.92 is: 7,601.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.12 : 18,841.20 = 5,067.92 : x
  2. Step 2: Convert to fraction form
    12,561.12/18,841.20 = 5,067.92/x
  3. Step 3: Cross multiply
    12,561.12x = 18,841.20 × 5,067.92
  4. Step 4: Simplify right side
    12,561.12x = 95,485,600.10
  5. Step 5: Solve for x
    x = 95,485,600.10/12,561.12
  6. Step 6: Final answer
    x = 7,601.68

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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.