Home / 7,939.35-11,906.58-5,489.91

Finding the Fourth Proportional to 7,939.35, 11,906.58 and 5,489.91

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Solution

The fourth proportional to 7,939.35, 11,906.58 and 5,489.91 is: 8,233.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.35 : 11,906.58 = 5,489.91 : x
  2. Step 2: Convert to fraction form
    7,939.35/11,906.58 = 5,489.91/x
  3. Step 3: Cross multiply
    7,939.35x = 11,906.58 × 5,489.91
  4. Step 4: Simplify right side
    7,939.35x = 65,366,052.61
  5. Step 5: Solve for x
    x = 65,366,052.61/7,939.35
  6. Step 6: Final answer
    x = 8,233.17

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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.