Home / 13,835.12-20,753.28-3,974.58

Finding the Fourth Proportional to 13,835.12, 20,753.28 and 3,974.58

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Solution

The fourth proportional to 13,835.12, 20,753.28 and 3,974.58 is: 5,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.12 : 20,753.28 = 3,974.58 : x
  2. Step 2: Convert to fraction form
    13,835.12/20,753.28 = 3,974.58/x
  3. Step 3: Cross multiply
    13,835.12x = 20,753.28 × 3,974.58
  4. Step 4: Simplify right side
    13,835.12x = 82,485,571.62
  5. Step 5: Solve for x
    x = 82,485,571.62/13,835.12
  6. Step 6: Final answer
    x = 5,962.04

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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.