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Finding the Fourth Proportional to 8,872.56, 13,311 and 3,029.40

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Solution

The fourth proportional to 8,872.56, 13,311 and 3,029.40 is: 4,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.56 : 13,311 = 3,029.40 : x
  2. Step 2: Convert to fraction form
    8,872.56/13,311 = 3,029.40/x
  3. Step 3: Cross multiply
    8,872.56x = 13,311 × 3,029.40
  4. Step 4: Simplify right side
    8,872.56x = 40,324,343.40
  5. Step 5: Solve for x
    x = 40,324,343.40/8,872.56
  6. Step 6: Final answer
    x = 4,544.84

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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.