Home / 9,939.25-14,912.39-4,391.88

Finding the Fourth Proportional to 9,939.25, 14,912.39 and 4,391.88

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Solution

The fourth proportional to 9,939.25, 14,912.39 and 4,391.88 is: 6,589.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.25 : 14,912.39 = 4,391.88 : x
  2. Step 2: Convert to fraction form
    9,939.25/14,912.39 = 4,391.88/x
  3. Step 3: Cross multiply
    9,939.25x = 14,912.39 × 4,391.88
  4. Step 4: Simplify right side
    9,939.25x = 65,493,427.39
  5. Step 5: Solve for x
    x = 65,493,427.39/9,939.25
  6. Step 6: Final answer
    x = 6,589.37

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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.