Home / 12,236.94-18,357.57-3,917.22

Finding the Fourth Proportional to 12,236.94, 18,357.57 and 3,917.22

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Solution

The fourth proportional to 12,236.94, 18,357.57 and 3,917.22 is: 5,876.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.94 : 18,357.57 = 3,917.22 : x
  2. Step 2: Convert to fraction form
    12,236.94/18,357.57 = 3,917.22/x
  3. Step 3: Cross multiply
    12,236.94x = 18,357.57 × 3,917.22
  4. Step 4: Simplify right side
    12,236.94x = 71,910,640.36
  5. Step 5: Solve for x
    x = 71,910,640.36/12,236.94
  6. Step 6: Final answer
    x = 5,876.52

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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.