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Finding the Fourth Proportional to 12,231.77, 16,879.83 and 6,927.61

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Solution

The fourth proportional to 12,231.77, 16,879.83 and 6,927.61 is: 9,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.77 : 16,879.83 = 6,927.61 : x
  2. Step 2: Convert to fraction form
    12,231.77/16,879.83 = 6,927.61/x
  3. Step 3: Cross multiply
    12,231.77x = 16,879.83 × 6,927.61
  4. Step 4: Simplify right side
    12,231.77x = 116,936,853.56
  5. Step 5: Solve for x
    x = 116,936,853.56/12,231.77
  6. Step 6: Final answer
    x = 9,560.10

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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.