Home / 7,961.27-11,939.07-3,029.60

Finding the Fourth Proportional to 7,961.27, 11,939.07 and 3,029.60

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Solution

The fourth proportional to 7,961.27, 11,939.07 and 3,029.60 is: 4,543.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.27 : 11,939.07 = 3,029.60 : x
  2. Step 2: Convert to fraction form
    7,961.27/11,939.07 = 3,029.60/x
  3. Step 3: Cross multiply
    7,961.27x = 11,939.07 × 3,029.60
  4. Step 4: Simplify right side
    7,961.27x = 36,170,606.47
  5. Step 5: Solve for x
    x = 36,170,606.47/7,961.27
  6. Step 6: Final answer
    x = 4,543.32

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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.