Home / 11,890.97-17,824.28-7,739.31

Finding the Fourth Proportional to 11,890.97, 17,824.28 and 7,739.31

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Solution

The fourth proportional to 11,890.97, 17,824.28 and 7,739.31 is: 11,601.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.97 : 17,824.28 = 7,739.31 : x
  2. Step 2: Convert to fraction form
    11,890.97/17,824.28 = 7,739.31/x
  3. Step 3: Cross multiply
    11,890.97x = 17,824.28 × 7,739.31
  4. Step 4: Simplify right side
    11,890.97x = 137,947,589.75
  5. Step 5: Solve for x
    x = 137,947,589.75/11,890.97
  6. Step 6: Final answer
    x = 11,601.04

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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.