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Finding the Fourth Proportional to 8,773.30, 13,160.20 and 3,840.40

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Solution

The fourth proportional to 8,773.30, 13,160.20 and 3,840.40 is: 5,760.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.30 : 13,160.20 = 3,840.40 : x
  2. Step 2: Convert to fraction form
    8,773.30/13,160.20 = 3,840.40/x
  3. Step 3: Cross multiply
    8,773.30x = 13,160.20 × 3,840.40
  4. Step 4: Simplify right side
    8,773.30x = 50,540,432.08
  5. Step 5: Solve for x
    x = 50,540,432.08/8,773.30
  6. Step 6: Final answer
    x = 5,760.71

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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.