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Finding the Fourth Proportional to 12,234.88, 18,352.07 and 3,914.90

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Solution

The fourth proportional to 12,234.88, 18,352.07 and 3,914.90 is: 5,872.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,234.88 : 18,352.07 = 3,914.90 : x
  2. Step 2: Convert to fraction form
    12,234.88/18,352.07 = 3,914.90/x
  3. Step 3: Cross multiply
    12,234.88x = 18,352.07 × 3,914.90
  4. Step 4: Simplify right side
    12,234.88x = 71,846,427.08
  5. Step 5: Solve for x
    x = 71,846,427.08/12,234.88
  6. Step 6: Final answer
    x = 5,872.26

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1.5x scale

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.