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Finding the Fourth Proportional to 12,231.56, 16,879.78 and 6,926.36

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Solution

The fourth proportional to 12,231.56, 16,879.78 and 6,926.36 is: 9,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.56 : 16,879.78 = 6,926.36 : x
  2. Step 2: Convert to fraction form
    12,231.56/16,879.78 = 6,926.36/x
  3. Step 3: Cross multiply
    12,231.56x = 16,879.78 × 6,926.36
  4. Step 4: Simplify right side
    12,231.56x = 116,915,433.00
  5. Step 5: Solve for x
    x = 116,915,433.00/12,231.56
  6. Step 6: Final answer
    x = 9,558.51

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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.