Home / 14,229.75-21,344.61-7,908.65

Finding the Fourth Proportional to 14,229.75, 21,344.61 and 7,908.65

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Solution

The fourth proportional to 14,229.75, 21,344.61 and 7,908.65 is: 11,862.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,229.75 : 21,344.61 = 7,908.65 : x
  2. Step 2: Convert to fraction form
    14,229.75/21,344.61 = 7,908.65/x
  3. Step 3: Cross multiply
    14,229.75x = 21,344.61 × 7,908.65
  4. Step 4: Simplify right side
    14,229.75x = 168,807,049.88
  5. Step 5: Solve for x
    x = 168,807,049.88/14,229.75
  6. Step 6: Final answer
    x = 11,862.97

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Half scale
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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.