Home / 11,986.32-17,965.36-5,404.80

Finding the Fourth Proportional to 11,986.32, 17,965.36 and 5,404.80

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Solution

The fourth proportional to 11,986.32, 17,965.36 and 5,404.80 is: 8,100.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.32 : 17,965.36 = 5,404.80 : x
  2. Step 2: Convert to fraction form
    11,986.32/17,965.36 = 5,404.80/x
  3. Step 3: Cross multiply
    11,986.32x = 17,965.36 × 5,404.80
  4. Step 4: Simplify right side
    11,986.32x = 97,099,177.73
  5. Step 5: Solve for x
    x = 97,099,177.73/11,986.32
  6. Step 6: Final answer
    x = 8,100.83

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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.