Home / 11,939.56-17,912.70-4,149.16

Finding the Fourth Proportional to 11,939.56, 17,912.70 and 4,149.16

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Solution

The fourth proportional to 11,939.56, 17,912.70 and 4,149.16 is: 6,224.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.56 : 17,912.70 = 4,149.16 : x
  2. Step 2: Convert to fraction form
    11,939.56/17,912.70 = 4,149.16/x
  3. Step 3: Cross multiply
    11,939.56x = 17,912.70 × 4,149.16
  4. Step 4: Simplify right side
    11,939.56x = 74,322,658.33
  5. Step 5: Solve for x
    x = 74,322,658.33/11,939.56
  6. Step 6: Final answer
    x = 6,224.91

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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.