Home / 11,422.36-17,131.45-5,180.88

Finding the Fourth Proportional to 11,422.36, 17,131.45 and 5,180.88

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Solution

The fourth proportional to 11,422.36, 17,131.45 and 5,180.88 is: 7,770.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.36 : 17,131.45 = 5,180.88 : x
  2. Step 2: Convert to fraction form
    11,422.36/17,131.45 = 5,180.88/x
  3. Step 3: Cross multiply
    11,422.36x = 17,131.45 × 5,180.88
  4. Step 4: Simplify right side
    11,422.36x = 88,755,986.68
  5. Step 5: Solve for x
    x = 88,755,986.68/11,422.36
  6. Step 6: Final answer
    x = 7,770.37

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1.5x scale

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.