Home / 11,943.12-17,913.60-3,177.70

Finding the Fourth Proportional to 11,943.12, 17,913.60 and 3,177.70

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Solution

The fourth proportional to 11,943.12, 17,913.60 and 3,177.70 is: 4,766.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.12 : 17,913.60 = 3,177.70 : x
  2. Step 2: Convert to fraction form
    11,943.12/17,913.60 = 3,177.70/x
  3. Step 3: Cross multiply
    11,943.12x = 17,913.60 × 3,177.70
  4. Step 4: Simplify right side
    11,943.12x = 56,924,046.72
  5. Step 5: Solve for x
    x = 56,924,046.72/11,943.12
  6. Step 6: Final answer
    x = 4,766.26

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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.