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Finding the Fourth Proportional to 8,753.49, 13,137.17 and 3,208.55

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Solution

The fourth proportional to 8,753.49, 13,137.17 and 3,208.55 is: 4,815.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.49 : 13,137.17 = 3,208.55 : x
  2. Step 2: Convert to fraction form
    8,753.49/13,137.17 = 3,208.55/x
  3. Step 3: Cross multiply
    8,753.49x = 13,137.17 × 3,208.55
  4. Step 4: Simplify right side
    8,753.49x = 42,151,185.07
  5. Step 5: Solve for x
    x = 42,151,185.07/8,753.49
  6. Step 6: Final answer
    x = 4,815.36

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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.