Home / 11,791.82-16,272.38-6,486.64

Finding the Fourth Proportional to 11,791.82, 16,272.38 and 6,486.64

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Solution

The fourth proportional to 11,791.82, 16,272.38 and 6,486.64 is: 8,951.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.82 : 16,272.38 = 6,486.64 : x
  2. Step 2: Convert to fraction form
    11,791.82/16,272.38 = 6,486.64/x
  3. Step 3: Cross multiply
    11,791.82x = 16,272.38 × 6,486.64
  4. Step 4: Simplify right side
    11,791.82x = 105,553,046.54
  5. Step 5: Solve for x
    x = 105,553,046.54/11,791.82
  6. Step 6: Final answer
    x = 8,951.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.