Home / 11,380.22-17,081.40-8,702.90

Finding the Fourth Proportional to 11,380.22, 17,081.40 and 8,702.90

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Solution

The fourth proportional to 11,380.22, 17,081.40 and 8,702.90 is: 13,062.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.22 : 17,081.40 = 8,702.90 : x
  2. Step 2: Convert to fraction form
    11,380.22/17,081.40 = 8,702.90/x
  3. Step 3: Cross multiply
    11,380.22x = 17,081.40 × 8,702.90
  4. Step 4: Simplify right side
    11,380.22x = 148,657,716.06
  5. Step 5: Solve for x
    x = 148,657,716.06/11,380.22
  6. Step 6: Final answer
    x = 13,062.82

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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.