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Finding the Fourth Proportional to 13,616, 20,425.28 and 4,850.56

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Solution

The fourth proportional to 13,616, 20,425.28 and 4,850.56 is: 7,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616 : 20,425.28 = 4,850.56 : x
  2. Step 2: Convert to fraction form
    13,616/20,425.28 = 4,850.56/x
  3. Step 3: Cross multiply
    13,616x = 20,425.28 × 4,850.56
  4. Step 4: Simplify right side
    13,616x = 99,074,046.16
  5. Step 5: Solve for x
    x = 99,074,046.16/13,616
  6. Step 6: Final answer
    x = 7,276.30

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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.