Home / 13,904.97-20,857.28-3,375.07

Finding the Fourth Proportional to 13,904.97, 20,857.28 and 3,375.07

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Solution

The fourth proportional to 13,904.97, 20,857.28 and 3,375.07 is: 5,062.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.97 : 20,857.28 = 3,375.07 : x
  2. Step 2: Convert to fraction form
    13,904.97/20,857.28 = 3,375.07/x
  3. Step 3: Cross multiply
    13,904.97x = 20,857.28 × 3,375.07
  4. Step 4: Simplify right side
    13,904.97x = 70,394,772.82
  5. Step 5: Solve for x
    x = 70,394,772.82/13,904.97
  6. Step 6: Final answer
    x = 5,062.56

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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.