Home / 11,912.49-17,873.61-4,126.77

Finding the Fourth Proportional to 11,912.49, 17,873.61 and 4,126.77

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Solution

The fourth proportional to 11,912.49, 17,873.61 and 4,126.77 is: 6,191.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.49 : 17,873.61 = 4,126.77 : x
  2. Step 2: Convert to fraction form
    11,912.49/17,873.61 = 4,126.77/x
  3. Step 3: Cross multiply
    11,912.49x = 17,873.61 × 4,126.77
  4. Step 4: Simplify right side
    11,912.49x = 73,760,277.54
  5. Step 5: Solve for x
    x = 73,760,277.54/11,912.49
  6. Step 6: Final answer
    x = 6,191.84

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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.