Home / 11,982.49-17,968.23-4,081.79

Finding the Fourth Proportional to 11,982.49, 17,968.23 and 4,081.79

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Solution

The fourth proportional to 11,982.49, 17,968.23 and 4,081.79 is: 6,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.49 : 17,968.23 = 4,081.79 : x
  2. Step 2: Convert to fraction form
    11,982.49/17,968.23 = 4,081.79/x
  3. Step 3: Cross multiply
    11,982.49x = 17,968.23 × 4,081.79
  4. Step 4: Simplify right side
    11,982.49x = 73,342,601.76
  5. Step 5: Solve for x
    x = 73,342,601.76/11,982.49
  6. Step 6: Final answer
    x = 6,120.81

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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.