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Finding the Fourth Proportional to 8,791.73, 13,178.01 and 3,240.39

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Solution

The fourth proportional to 8,791.73, 13,178.01 and 3,240.39 is: 4,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.73 : 13,178.01 = 3,240.39 : x
  2. Step 2: Convert to fraction form
    8,791.73/13,178.01 = 3,240.39/x
  3. Step 3: Cross multiply
    8,791.73x = 13,178.01 × 3,240.39
  4. Step 4: Simplify right side
    8,791.73x = 42,701,891.82
  5. Step 5: Solve for x
    x = 42,701,891.82/8,791.73
  6. Step 6: Final answer
    x = 4,857.05

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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.