Home / 12,251.88-18,375.69-5,235.86

Finding the Fourth Proportional to 12,251.88, 18,375.69 and 5,235.86

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Solution

The fourth proportional to 12,251.88, 18,375.69 and 5,235.86 is: 7,852.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.88 : 18,375.69 = 5,235.86 : x
  2. Step 2: Convert to fraction form
    12,251.88/18,375.69 = 5,235.86/x
  3. Step 3: Cross multiply
    12,251.88x = 18,375.69 × 5,235.86
  4. Step 4: Simplify right side
    12,251.88x = 96,212,540.24
  5. Step 5: Solve for x
    x = 96,212,540.24/12,251.88
  6. Step 6: Final answer
    x = 7,852.88

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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.