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Finding the Fourth Proportional to 8,936.25, 13,404.21 and 3,092.77

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Solution

The fourth proportional to 8,936.25, 13,404.21 and 3,092.77 is: 4,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.25 : 13,404.21 = 3,092.77 : x
  2. Step 2: Convert to fraction form
    8,936.25/13,404.21 = 3,092.77/x
  3. Step 3: Cross multiply
    8,936.25x = 13,404.21 × 3,092.77
  4. Step 4: Simplify right side
    8,936.25x = 41,456,138.56
  5. Step 5: Solve for x
    x = 41,456,138.56/8,936.25
  6. Step 6: Final answer
    x = 4,639.10

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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.