Home / 11,986.56-17,988.48-6,791.04

Finding the Fourth Proportional to 11,986.56, 17,988.48 and 6,791.04

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Solution

The fourth proportional to 11,986.56, 17,988.48 and 6,791.04 is: 10,191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.56 : 17,988.48 = 6,791.04 : x
  2. Step 2: Convert to fraction form
    11,986.56/17,988.48 = 6,791.04/x
  3. Step 3: Cross multiply
    11,986.56x = 17,988.48 × 6,791.04
  4. Step 4: Simplify right side
    11,986.56x = 122,160,487.22
  5. Step 5: Solve for x
    x = 122,160,487.22/11,986.56
  6. Step 6: Final answer
    x = 10,191.46

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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.