Home / 11,945.24-17,917.86-3,180.18

Finding the Fourth Proportional to 11,945.24, 17,917.86 and 3,180.18

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Solution

The fourth proportional to 11,945.24, 17,917.86 and 3,180.18 is: 4,770.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.24 : 17,917.86 = 3,180.18 : x
  2. Step 2: Convert to fraction form
    11,945.24/17,917.86 = 3,180.18/x
  3. Step 3: Cross multiply
    11,945.24x = 17,917.86 × 3,180.18
  4. Step 4: Simplify right side
    11,945.24x = 56,982,020.01
  5. Step 5: Solve for x
    x = 56,982,020.01/11,945.24
  6. Step 6: Final answer
    x = 4,770.27

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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.