Home / 13,786.12-20,672.97-3,923.02

Finding the Fourth Proportional to 13,786.12, 20,672.97 and 3,923.02

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Solution

The fourth proportional to 13,786.12, 20,672.97 and 3,923.02 is: 5,882.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.12 : 20,672.97 = 3,923.02 : x
  2. Step 2: Convert to fraction form
    13,786.12/20,672.97 = 3,923.02/x
  3. Step 3: Cross multiply
    13,786.12x = 20,672.97 × 3,923.02
  4. Step 4: Simplify right side
    13,786.12x = 81,100,474.77
  5. Step 5: Solve for x
    x = 81,100,474.77/13,786.12
  6. Step 6: Final answer
    x = 5,882.76

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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.