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Finding the Fourth Proportional to 16,879.66, 25,324.96 and 8,115.26

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Solution

The fourth proportional to 16,879.66, 25,324.96 and 8,115.26 is: 12,175.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.66 : 25,324.96 = 8,115.26 : x
  2. Step 2: Convert to fraction form
    16,879.66/25,324.96 = 8,115.26/x
  3. Step 3: Cross multiply
    16,879.66x = 25,324.96 × 8,115.26
  4. Step 4: Simplify right side
    16,879.66x = 205,518,634.89
  5. Step 5: Solve for x
    x = 205,518,634.89/16,879.66
  6. Step 6: Final answer
    x = 12,175.52

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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.