Home / 9,128.70-13,694.49-3,934.62

Finding the Fourth Proportional to 9,128.70, 13,694.49 and 3,934.62

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Solution

The fourth proportional to 9,128.70, 13,694.49 and 3,934.62 is: 5,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.70 : 13,694.49 = 3,934.62 : x
  2. Step 2: Convert to fraction form
    9,128.70/13,694.49 = 3,934.62/x
  3. Step 3: Cross multiply
    9,128.70x = 13,694.49 × 3,934.62
  4. Step 4: Simplify right side
    9,128.70x = 53,882,614.24
  5. Step 5: Solve for x
    x = 53,882,614.24/9,128.70
  6. Step 6: Final answer
    x = 5,902.55

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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.