Home / 8,278.68-12,418.38-2,732.51

Finding the Fourth Proportional to 8,278.68, 12,418.38 and 2,732.51

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Solution

The fourth proportional to 8,278.68, 12,418.38 and 2,732.51 is: 4,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.68 : 12,418.38 = 2,732.51 : x
  2. Step 2: Convert to fraction form
    8,278.68/12,418.38 = 2,732.51/x
  3. Step 3: Cross multiply
    8,278.68x = 12,418.38 × 2,732.51
  4. Step 4: Simplify right side
    8,278.68x = 33,933,285.44
  5. Step 5: Solve for x
    x = 33,933,285.44/8,278.68
  6. Step 6: Final answer
    x = 4,098.88

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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.