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Finding the Fourth Proportional to 8,181, 12,269.88 and 2,336.58

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Solution

The fourth proportional to 8,181, 12,269.88 and 2,336.58 is: 3,504.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181 : 12,269.88 = 2,336.58 : x
  2. Step 2: Convert to fraction form
    8,181/12,269.88 = 2,336.58/x
  3. Step 3: Cross multiply
    8,181x = 12,269.88 × 2,336.58
  4. Step 4: Simplify right side
    8,181x = 28,669,556.21
  5. Step 5: Solve for x
    x = 28,669,556.21/8,181
  6. Step 6: Final answer
    x = 3,504.41

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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.