Home / 8,979.26-13,469.36-2,405.43

Finding the Fourth Proportional to 8,979.26, 13,469.36 and 2,405.43

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Solution

The fourth proportional to 8,979.26, 13,469.36 and 2,405.43 is: 3,608.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.26 : 13,469.36 = 2,405.43 : x
  2. Step 2: Convert to fraction form
    8,979.26/13,469.36 = 2,405.43/x
  3. Step 3: Cross multiply
    8,979.26x = 13,469.36 × 2,405.43
  4. Step 4: Simplify right side
    8,979.26x = 32,399,590.60
  5. Step 5: Solve for x
    x = 32,399,590.60/8,979.26
  6. Step 6: Final answer
    x = 3,608.27

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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.