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Finding the Fourth Proportional to 8,634.52, 12,950.92 and 2,791.16

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Solution

The fourth proportional to 8,634.52, 12,950.92 and 2,791.16 is: 4,186.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.52 : 12,950.92 = 2,791.16 : x
  2. Step 2: Convert to fraction form
    8,634.52/12,950.92 = 2,791.16/x
  3. Step 3: Cross multiply
    8,634.52x = 12,950.92 × 2,791.16
  4. Step 4: Simplify right side
    8,634.52x = 36,148,089.87
  5. Step 5: Solve for x
    x = 36,148,089.87/8,634.52
  6. Step 6: Final answer
    x = 4,186.46

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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.