Home / 11,912.09-17,855.52-4,007.08

Finding the Fourth Proportional to 11,912.09, 17,855.52 and 4,007.08

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Solution

The fourth proportional to 11,912.09, 17,855.52 and 4,007.08 is: 6,006.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.09 : 17,855.52 = 4,007.08 : x
  2. Step 2: Convert to fraction form
    11,912.09/17,855.52 = 4,007.08/x
  3. Step 3: Cross multiply
    11,912.09x = 17,855.52 × 4,007.08
  4. Step 4: Simplify right side
    11,912.09x = 71,548,497.08
  5. Step 5: Solve for x
    x = 71,548,497.08/11,912.09
  6. Step 6: Final answer
    x = 6,006.38

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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.