Home / 11,979.43-17,961.33-5,739.25

Finding the Fourth Proportional to 11,979.43, 17,961.33 and 5,739.25

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Solution

The fourth proportional to 11,979.43, 17,961.33 and 5,739.25 is: 8,605.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.43 : 17,961.33 = 5,739.25 : x
  2. Step 2: Convert to fraction form
    11,979.43/17,961.33 = 5,739.25/x
  3. Step 3: Cross multiply
    11,979.43x = 17,961.33 × 5,739.25
  4. Step 4: Simplify right side
    11,979.43x = 103,084,563.20
  5. Step 5: Solve for x
    x = 103,084,563.20/11,979.43
  6. Step 6: Final answer
    x = 8,605.13

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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.