Home / 11,884.38-17,826.84-3,986.88

Finding the Fourth Proportional to 11,884.38, 17,826.84 and 3,986.88

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Solution

The fourth proportional to 11,884.38, 17,826.84 and 3,986.88 is: 5,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,884.38 : 17,826.84 = 3,986.88 : x
  2. Step 2: Convert to fraction form
    11,884.38/17,826.84 = 3,986.88/x
  3. Step 3: Cross multiply
    11,884.38x = 17,826.84 × 3,986.88
  4. Step 4: Simplify right side
    11,884.38x = 71,073,471.86
  5. Step 5: Solve for x
    x = 71,073,471.86/11,884.38
  6. Step 6: Final answer
    x = 5,980.41

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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.