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Finding the Fourth Proportional to 8,349.54, 12,520.01 and 2,505.39

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Solution

The fourth proportional to 8,349.54, 12,520.01 and 2,505.39 is: 3,756.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.54 : 12,520.01 = 2,505.39 : x
  2. Step 2: Convert to fraction form
    8,349.54/12,520.01 = 2,505.39/x
  3. Step 3: Cross multiply
    8,349.54x = 12,520.01 × 2,505.39
  4. Step 4: Simplify right side
    8,349.54x = 31,367,495.33
  5. Step 5: Solve for x
    x = 31,367,495.33/8,349.54
  6. Step 6: Final answer
    x = 3,756.79

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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.