Home / 7,939.36-11,910.78-3,009.04

Finding the Fourth Proportional to 7,939.36, 11,910.78 and 3,009.04

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Solution

The fourth proportional to 7,939.36, 11,910.78 and 3,009.04 is: 4,514.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.36 : 11,910.78 = 3,009.04 : x
  2. Step 2: Convert to fraction form
    7,939.36/11,910.78 = 3,009.04/x
  3. Step 3: Cross multiply
    7,939.36x = 11,910.78 × 3,009.04
  4. Step 4: Simplify right side
    7,939.36x = 35,840,013.45
  5. Step 5: Solve for x
    x = 35,840,013.45/7,939.36
  6. Step 6: Final answer
    x = 4,514.22

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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.