Home / 13,728.88-20,593.17-3,340.64

Finding the Fourth Proportional to 13,728.88, 20,593.17 and 3,340.64

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Solution

The fourth proportional to 13,728.88, 20,593.17 and 3,340.64 is: 5,010.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.88 : 20,593.17 = 3,340.64 : x
  2. Step 2: Convert to fraction form
    13,728.88/20,593.17 = 3,340.64/x
  3. Step 3: Cross multiply
    13,728.88x = 20,593.17 × 3,340.64
  4. Step 4: Simplify right side
    13,728.88x = 68,794,367.43
  5. Step 5: Solve for x
    x = 68,794,367.43/13,728.88
  6. Step 6: Final answer
    x = 5,010.92

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1.5x scale

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.