Home / 11,979.72-17,982.36-10,601.82

Finding the Fourth Proportional to 11,979.72, 17,982.36 and 10,601.82

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Solution

The fourth proportional to 11,979.72, 17,982.36 and 10,601.82 is: 15,914.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.72 : 17,982.36 = 10,601.82 : x
  2. Step 2: Convert to fraction form
    11,979.72/17,982.36 = 10,601.82/x
  3. Step 3: Cross multiply
    11,979.72x = 17,982.36 × 10,601.82
  4. Step 4: Simplify right side
    11,979.72x = 190,645,743.90
  5. Step 5: Solve for x
    x = 190,645,743.90/11,979.72
  6. Step 6: Final answer
    x = 15,914.04

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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.