Home / 8,249.18-12,374.28-3,318.82

Finding the Fourth Proportional to 8,249.18, 12,374.28 and 3,318.82

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Solution

The fourth proportional to 8,249.18, 12,374.28 and 3,318.82 is: 4,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.18 : 12,374.28 = 3,318.82 : x
  2. Step 2: Convert to fraction form
    8,249.18/12,374.28 = 3,318.82/x
  3. Step 3: Cross multiply
    8,249.18x = 12,374.28 × 3,318.82
  4. Step 4: Simplify right side
    8,249.18x = 41,067,977.01
  5. Step 5: Solve for x
    x = 41,067,977.01/8,249.18
  6. Step 6: Final answer
    x = 4,978.43

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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.