Home / 11,890.56-17,836.58-3,992.43

Finding the Fourth Proportional to 11,890.56, 17,836.58 and 3,992.43

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Solution

The fourth proportional to 11,890.56, 17,836.58 and 3,992.43 is: 5,988.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.56 : 17,836.58 = 3,992.43 : x
  2. Step 2: Convert to fraction form
    11,890.56/17,836.58 = 3,992.43/x
  3. Step 3: Cross multiply
    11,890.56x = 17,836.58 × 3,992.43
  4. Step 4: Simplify right side
    11,890.56x = 71,211,277.13
  5. Step 5: Solve for x
    x = 71,211,277.13/11,890.56
  6. Step 6: Final answer
    x = 5,988.89

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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.