Home / 11,879.27-17,822.87-3,982.57

Finding the Fourth Proportional to 11,879.27, 17,822.87 and 3,982.57

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Solution

The fourth proportional to 11,879.27, 17,822.87 and 3,982.57 is: 5,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.27 : 17,822.87 = 3,982.57 : x
  2. Step 2: Convert to fraction form
    11,879.27/17,822.87 = 3,982.57/x
  3. Step 3: Cross multiply
    11,879.27x = 17,822.87 × 3,982.57
  4. Step 4: Simplify right side
    11,879.27x = 70,980,766.64
  5. Step 5: Solve for x
    x = 70,980,766.64/11,879.27
  6. Step 6: Final answer
    x = 5,975.18

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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.