Home / 11,890.10-17,835.92-3,992.30

Finding the Fourth Proportional to 11,890.10, 17,835.92 and 3,992.30

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Solution

The fourth proportional to 11,890.10, 17,835.92 and 3,992.30 is: 5,988.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.10 : 17,835.92 = 3,992.30 : x
  2. Step 2: Convert to fraction form
    11,890.10/17,835.92 = 3,992.30/x
  3. Step 3: Cross multiply
    11,890.10x = 17,835.92 × 3,992.30
  4. Step 4: Simplify right side
    11,890.10x = 71,206,353.40
  5. Step 5: Solve for x
    x = 71,206,353.40/11,890.10
  6. Step 6: Final answer
    x = 5,988.71

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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.