Home / 11,983.28-17,972.82-3,217.46

Finding the Fourth Proportional to 11,983.28, 17,972.82 and 3,217.46

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Solution

The fourth proportional to 11,983.28, 17,972.82 and 3,217.46 is: 4,825.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.28 : 17,972.82 = 3,217.46 : x
  2. Step 2: Convert to fraction form
    11,983.28/17,972.82 = 3,217.46/x
  3. Step 3: Cross multiply
    11,983.28x = 17,972.82 × 3,217.46
  4. Step 4: Simplify right side
    11,983.28x = 57,826,739.57
  5. Step 5: Solve for x
    x = 57,826,739.57/11,983.28
  6. Step 6: Final answer
    x = 4,825.62

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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.