Home / 11,890.23-17,836.11-3,992.43

Finding the Fourth Proportional to 11,890.23, 17,836.11 and 3,992.43

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Solution

The fourth proportional to 11,890.23, 17,836.11 and 3,992.43 is: 5,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.23 : 17,836.11 = 3,992.43 : x
  2. Step 2: Convert to fraction form
    11,890.23/17,836.11 = 3,992.43/x
  3. Step 3: Cross multiply
    11,890.23x = 17,836.11 × 3,992.43
  4. Step 4: Simplify right side
    11,890.23x = 71,209,353.76
  5. Step 5: Solve for x
    x = 71,209,353.76/11,890.23
  6. Step 6: Final answer
    x = 5,988.90

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1.5x scale

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.