Home / 11,990.88-17,986.66-3,225.80

Finding the Fourth Proportional to 11,990.88, 17,986.66 and 3,225.80

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Solution

The fourth proportional to 11,990.88, 17,986.66 and 3,225.80 is: 4,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.88 : 17,986.66 = 3,225.80 : x
  2. Step 2: Convert to fraction form
    11,990.88/17,986.66 = 3,225.80/x
  3. Step 3: Cross multiply
    11,990.88x = 17,986.66 × 3,225.80
  4. Step 4: Simplify right side
    11,990.88x = 58,021,404.73
  5. Step 5: Solve for x
    x = 58,021,404.73/11,990.88
  6. Step 6: Final answer
    x = 4,838.79

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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.