Home / 12,249.06-18,279.62-10,936.86

Finding the Fourth Proportional to 12,249.06, 18,279.62 and 10,936.86

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Solution

The fourth proportional to 12,249.06, 18,279.62 and 10,936.86 is: 16,321.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.06 : 18,279.62 = 10,936.86 : x
  2. Step 2: Convert to fraction form
    12,249.06/18,279.62 = 10,936.86/x
  3. Step 3: Cross multiply
    12,249.06x = 18,279.62 × 10,936.86
  4. Step 4: Simplify right side
    12,249.06x = 199,921,590.11
  5. Step 5: Solve for x
    x = 199,921,590.11/12,249.06
  6. Step 6: Final answer
    x = 16,321.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.