Home / 11,761.20-17,641.80-4,835.70

Finding the Fourth Proportional to 11,761.20, 17,641.80 and 4,835.70

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Solution

The fourth proportional to 11,761.20, 17,641.80 and 4,835.70 is: 7,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.20 : 17,641.80 = 4,835.70 : x
  2. Step 2: Convert to fraction form
    11,761.20/17,641.80 = 4,835.70/x
  3. Step 3: Cross multiply
    11,761.20x = 17,641.80 × 4,835.70
  4. Step 4: Simplify right side
    11,761.20x = 85,310,452.26
  5. Step 5: Solve for x
    x = 85,310,452.26/11,761.20
  6. Step 6: Final answer
    x = 7,253.55

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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.