Home / 8,250.28-12,380.22-3,320.36

Finding the Fourth Proportional to 8,250.28, 12,380.22 and 3,320.36

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Solution

The fourth proportional to 8,250.28, 12,380.22 and 3,320.36 is: 4,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,250.28 : 12,380.22 = 3,320.36 : x
  2. Step 2: Convert to fraction form
    8,250.28/12,380.22 = 3,320.36/x
  3. Step 3: Cross multiply
    8,250.28x = 12,380.22 × 3,320.36
  4. Step 4: Simplify right side
    8,250.28x = 41,106,787.28
  5. Step 5: Solve for x
    x = 41,106,787.28/8,250.28
  6. Step 6: Final answer
    x = 4,982.47

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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.