Home / 12,789.42-19,177.17-6,873.38

Finding the Fourth Proportional to 12,789.42, 19,177.17 and 6,873.38

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Solution

The fourth proportional to 12,789.42, 19,177.17 and 6,873.38 is: 10,306.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.42 : 19,177.17 = 6,873.38 : x
  2. Step 2: Convert to fraction form
    12,789.42/19,177.17 = 6,873.38/x
  3. Step 3: Cross multiply
    12,789.42x = 19,177.17 × 6,873.38
  4. Step 4: Simplify right side
    12,789.42x = 131,811,976.73
  5. Step 5: Solve for x
    x = 131,811,976.73/12,789.42
  6. Step 6: Final answer
    x = 10,306.33

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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.