Home / 11,879.52-17,817.75-3,115.14

Finding the Fourth Proportional to 11,879.52, 17,817.75 and 3,115.14

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Solution

The fourth proportional to 11,879.52, 17,817.75 and 3,115.14 is: 4,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.52 : 17,817.75 = 3,115.14 : x
  2. Step 2: Convert to fraction form
    11,879.52/17,817.75 = 3,115.14/x
  3. Step 3: Cross multiply
    11,879.52x = 17,817.75 × 3,115.14
  4. Step 4: Simplify right side
    11,879.52x = 55,504,785.74
  5. Step 5: Solve for x
    x = 55,504,785.74/11,879.52
  6. Step 6: Final answer
    x = 4,672.31

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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.