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Finding the Fourth Proportional to 8,393.52, 12,590.03 and 2,153.28

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Solution

The fourth proportional to 8,393.52, 12,590.03 and 2,153.28 is: 3,229.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.52 : 12,590.03 = 2,153.28 : x
  2. Step 2: Convert to fraction form
    8,393.52/12,590.03 = 2,153.28/x
  3. Step 3: Cross multiply
    8,393.52x = 12,590.03 × 2,153.28
  4. Step 4: Simplify right side
    8,393.52x = 27,109,912.39
  5. Step 5: Solve for x
    x = 27,109,912.39/8,393.52
  6. Step 6: Final answer
    x = 3,229.86

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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.