Home / 11,720.88-17,584.97-3,930.03

Finding the Fourth Proportional to 11,720.88, 17,584.97 and 3,930.03

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Solution

The fourth proportional to 11,720.88, 17,584.97 and 3,930.03 is: 5,896.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.88 : 17,584.97 = 3,930.03 : x
  2. Step 2: Convert to fraction form
    11,720.88/17,584.97 = 3,930.03/x
  3. Step 3: Cross multiply
    11,720.88x = 17,584.97 × 3,930.03
  4. Step 4: Simplify right side
    11,720.88x = 69,109,440.00
  5. Step 5: Solve for x
    x = 69,109,440.00/11,720.88
  6. Step 6: Final answer
    x = 5,896.27

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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.