Home / 7,939.60-11,903.40-4,046.80

Finding the Fourth Proportional to 7,939.60, 11,903.40 and 4,046.80

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Solution

The fourth proportional to 7,939.60, 11,903.40 and 4,046.80 is: 6,067.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.60 : 11,903.40 = 4,046.80 : x
  2. Step 2: Convert to fraction form
    7,939.60/11,903.40 = 4,046.80/x
  3. Step 3: Cross multiply
    7,939.60x = 11,903.40 × 4,046.80
  4. Step 4: Simplify right side
    7,939.60x = 48,170,679.12
  5. Step 5: Solve for x
    x = 48,170,679.12/7,939.60
  6. Step 6: Final answer
    x = 6,067.14

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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.