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Finding the Third Proportional to 7,879.50 and 12,025.13

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Solution

The third proportional to 7,879.50 and 12,025.13 is: 18,351.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.50 : 12,025.13 = 12,025.13 : x
  2. Step 2: Convert to fraction form
    7,879.50/12,025.13 = 12,025.13/x
  3. Step 3: Cross multiply
    7,879.50x = 12,025.13 × 12,025.13
  4. Step 4: Simplify right side
    7,879.50x = 144,603,631.27
  5. Step 5: Solve for x
    x = 144,603,631.27/7,879.50
  6. Step 6: Final answer
    x = 18,351.88

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.