Home / 12,380.92-18,565.71-5,357.68

Finding the Fourth Proportional to 12,380.92, 18,565.71 and 5,357.68

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Solution

The fourth proportional to 12,380.92, 18,565.71 and 5,357.68 is: 8,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.92 : 18,565.71 = 5,357.68 : x
  2. Step 2: Convert to fraction form
    12,380.92/18,565.71 = 5,357.68/x
  3. Step 3: Cross multiply
    12,380.92x = 18,565.71 × 5,357.68
  4. Step 4: Simplify right side
    12,380.92x = 99,469,133.15
  5. Step 5: Solve for x
    x = 99,469,133.15/12,380.92
  6. Step 6: Final answer
    x = 8,034.07

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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.