Home / 8,081.68-12,122.52-3,467.92

Finding the Fourth Proportional to 8,081.68, 12,122.52 and 3,467.92

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Solution

The fourth proportional to 8,081.68, 12,122.52 and 3,467.92 is: 5,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.68 : 12,122.52 = 3,467.92 : x
  2. Step 2: Convert to fraction form
    8,081.68/12,122.52 = 3,467.92/x
  3. Step 3: Cross multiply
    8,081.68x = 12,122.52 × 3,467.92
  4. Step 4: Simplify right side
    8,081.68x = 42,039,929.56
  5. Step 5: Solve for x
    x = 42,039,929.56/8,081.68
  6. Step 6: Final answer
    x = 5,201.88

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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.