Home / 13,785.56-20,672.18-3,922.54

Finding the Fourth Proportional to 13,785.56, 20,672.18 and 3,922.54

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Solution

The fourth proportional to 13,785.56, 20,672.18 and 3,922.54 is: 5,882.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.56 : 20,672.18 = 3,922.54 : x
  2. Step 2: Convert to fraction form
    13,785.56/20,672.18 = 3,922.54/x
  3. Step 3: Cross multiply
    13,785.56x = 20,672.18 × 3,922.54
  4. Step 4: Simplify right side
    13,785.56x = 81,087,452.94
  5. Step 5: Solve for x
    x = 81,087,452.94/13,785.56
  6. Step 6: Final answer
    x = 5,882.06

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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.