Home / 11,880.24-17,826.72-4,489.92

Finding the Fourth Proportional to 11,880.24, 17,826.72 and 4,489.92

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Solution

The fourth proportional to 11,880.24, 17,826.72 and 4,489.92 is: 6,737.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.24 : 17,826.72 = 4,489.92 : x
  2. Step 2: Convert to fraction form
    11,880.24/17,826.72 = 4,489.92/x
  3. Step 3: Cross multiply
    11,880.24x = 17,826.72 × 4,489.92
  4. Step 4: Simplify right side
    11,880.24x = 80,040,546.66
  5. Step 5: Solve for x
    x = 80,040,546.66/11,880.24
  6. Step 6: Final answer
    x = 6,737.28

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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.