Home / 11,890.12-17,833.38-4,490.86

Finding the Fourth Proportional to 11,890.12, 17,833.38 and 4,490.86

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Solution

The fourth proportional to 11,890.12, 17,833.38 and 4,490.86 is: 6,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.12 : 17,833.38 = 4,490.86 : x
  2. Step 2: Convert to fraction form
    11,890.12/17,833.38 = 4,490.86/x
  3. Step 3: Cross multiply
    11,890.12x = 17,833.38 × 4,490.86
  4. Step 4: Simplify right side
    11,890.12x = 80,087,212.91
  5. Step 5: Solve for x
    x = 80,087,212.91/11,890.12
  6. Step 6: Final answer
    x = 6,735.61

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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.