Home / 7,984.88-11,979.76-4,092.04

Finding the Fourth Proportional to 7,984.88, 11,979.76 and 4,092.04

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Solution

The fourth proportional to 7,984.88, 11,979.76 and 4,092.04 is: 6,139.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.88 : 11,979.76 = 4,092.04 : x
  2. Step 2: Convert to fraction form
    7,984.88/11,979.76 = 4,092.04/x
  3. Step 3: Cross multiply
    7,984.88x = 11,979.76 × 4,092.04
  4. Step 4: Simplify right side
    7,984.88x = 49,021,657.11
  5. Step 5: Solve for x
    x = 49,021,657.11/7,984.88
  6. Step 6: Final answer
    x = 6,139.31

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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.