Home / 11,947.37-17,921.75-3,627.65

Finding the Fourth Proportional to 11,947.37, 17,921.75 and 3,627.65

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Solution

The fourth proportional to 11,947.37, 17,921.75 and 3,627.65 is: 5,441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.37 : 17,921.75 = 3,627.65 : x
  2. Step 2: Convert to fraction form
    11,947.37/17,921.75 = 3,627.65/x
  3. Step 3: Cross multiply
    11,947.37x = 17,921.75 × 3,627.65
  4. Step 4: Simplify right side
    11,947.37x = 65,013,863.05
  5. Step 5: Solve for x
    x = 65,013,863.05/11,947.37
  6. Step 6: Final answer
    x = 5,441.69

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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.