Home / 11,858.75-17,785.84-5,531.88

Finding the Fourth Proportional to 11,858.75, 17,785.84 and 5,531.88

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Solution

The fourth proportional to 11,858.75, 17,785.84 and 5,531.88 is: 8,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.75 : 17,785.84 = 5,531.88 : x
  2. Step 2: Convert to fraction form
    11,858.75/17,785.84 = 5,531.88/x
  3. Step 3: Cross multiply
    11,858.75x = 17,785.84 × 5,531.88
  4. Step 4: Simplify right side
    11,858.75x = 98,389,132.58
  5. Step 5: Solve for x
    x = 98,389,132.58/11,858.75
  6. Step 6: Final answer
    x = 8,296.75

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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.