Home / 13,167.20-19,750.32-3,306.56

Finding the Fourth Proportional to 13,167.20, 19,750.32 and 3,306.56

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Solution

The fourth proportional to 13,167.20, 19,750.32 and 3,306.56 is: 4,959.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.20 : 19,750.32 = 3,306.56 : x
  2. Step 2: Convert to fraction form
    13,167.20/19,750.32 = 3,306.56/x
  3. Step 3: Cross multiply
    13,167.20x = 19,750.32 × 3,306.56
  4. Step 4: Simplify right side
    13,167.20x = 65,305,618.10
  5. Step 5: Solve for x
    x = 65,305,618.10/13,167.20
  6. Step 6: Final answer
    x = 4,959.72

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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.