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Finding the Fourth Proportional to 8,912.03, 13,363.48 and 3,289.41

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Solution

The fourth proportional to 8,912.03, 13,363.48 and 3,289.41 is: 4,932.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.03 : 13,363.48 = 3,289.41 : x
  2. Step 2: Convert to fraction form
    8,912.03/13,363.48 = 3,289.41/x
  3. Step 3: Cross multiply
    8,912.03x = 13,363.48 × 3,289.41
  4. Step 4: Simplify right side
    8,912.03x = 43,957,968.86
  5. Step 5: Solve for x
    x = 43,957,968.86/8,912.03
  6. Step 6: Final answer
    x = 4,932.43

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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.