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Finding the Fourth Proportional to 12,552.80, 17,324.22 and 8,019.65

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Solution

The fourth proportional to 12,552.80, 17,324.22 and 8,019.65 is: 11,067.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552.80 : 17,324.22 = 8,019.65 : x
  2. Step 2: Convert to fraction form
    12,552.80/17,324.22 = 8,019.65/x
  3. Step 3: Cross multiply
    12,552.80x = 17,324.22 × 8,019.65
  4. Step 4: Simplify right side
    12,552.80x = 138,934,156.86
  5. Step 5: Solve for x
    x = 138,934,156.86/12,552.80
  6. Step 6: Final answer
    x = 11,067.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.