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Finding the Fourth Proportional to 8,348.85, 12,505.05 and 3,662.60

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Solution

The fourth proportional to 8,348.85, 12,505.05 and 3,662.60 is: 5,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.85 : 12,505.05 = 3,662.60 : x
  2. Step 2: Convert to fraction form
    8,348.85/12,505.05 = 3,662.60/x
  3. Step 3: Cross multiply
    8,348.85x = 12,505.05 × 3,662.60
  4. Step 4: Simplify right side
    8,348.85x = 45,800,933.60
  5. Step 5: Solve for x
    x = 45,800,933.60/8,348.85
  6. Step 6: Final answer
    x = 5,485.90

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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.