Home / 11,976.36-17,964.42-5,397.90

Finding the Fourth Proportional to 11,976.36, 17,964.42 and 5,397.90

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Solution

The fourth proportional to 11,976.36, 17,964.42 and 5,397.90 is: 8,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.36 : 17,964.42 = 5,397.90 : x
  2. Step 2: Convert to fraction form
    11,976.36/17,964.42 = 5,397.90/x
  3. Step 3: Cross multiply
    11,976.36x = 17,964.42 × 5,397.90
  4. Step 4: Simplify right side
    11,976.36x = 96,970,142.72
  5. Step 5: Solve for x
    x = 96,970,142.72/11,976.36
  6. Step 6: Final answer
    x = 8,096.80

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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.