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Finding the Fourth Proportional to 8,914.54, 13,372.01 and 2,991.41

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Solution

The fourth proportional to 8,914.54, 13,372.01 and 2,991.41 is: 4,487.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.54 : 13,372.01 = 2,991.41 : x
  2. Step 2: Convert to fraction form
    8,914.54/13,372.01 = 2,991.41/x
  3. Step 3: Cross multiply
    8,914.54x = 13,372.01 × 2,991.41
  4. Step 4: Simplify right side
    8,914.54x = 40,001,164.43
  5. Step 5: Solve for x
    x = 40,001,164.43/8,914.54
  6. Step 6: Final answer
    x = 4,487.18

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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.