Home / 8,320.11-12,474.62-3,388.42

Finding the Fourth Proportional to 8,320.11, 12,474.62 and 3,388.42

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Solution

The fourth proportional to 8,320.11, 12,474.62 and 3,388.42 is: 5,080.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.11 : 12,474.62 = 3,388.42 : x
  2. Step 2: Convert to fraction form
    8,320.11/12,474.62 = 3,388.42/x
  3. Step 3: Cross multiply
    8,320.11x = 12,474.62 × 3,388.42
  4. Step 4: Simplify right side
    8,320.11x = 42,269,251.90
  5. Step 5: Solve for x
    x = 42,269,251.90/8,320.11
  6. Step 6: Final answer
    x = 5,080.37

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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.