Home / 8,283.28-12,427.32-2,439.90

Finding the Fourth Proportional to 8,283.28, 12,427.32 and 2,439.90

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Solution

The fourth proportional to 8,283.28, 12,427.32 and 2,439.90 is: 3,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,283.28 : 12,427.32 = 2,439.90 : x
  2. Step 2: Convert to fraction form
    8,283.28/12,427.32 = 2,439.90/x
  3. Step 3: Cross multiply
    8,283.28x = 12,427.32 × 2,439.90
  4. Step 4: Simplify right side
    8,283.28x = 30,321,418.07
  5. Step 5: Solve for x
    x = 30,321,418.07/8,283.28
  6. Step 6: Final answer
    x = 3,660.56

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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.