Home / 7,486.50-11,229.71-1,939.83

Finding the Fourth Proportional to 7,486.50, 11,229.71 and 1,939.83

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Solution

The fourth proportional to 7,486.50, 11,229.71 and 1,939.83 is: 2,909.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.50 : 11,229.71 = 1,939.83 : x
  2. Step 2: Convert to fraction form
    7,486.50/11,229.71 = 1,939.83/x
  3. Step 3: Cross multiply
    7,486.50x = 11,229.71 × 1,939.83
  4. Step 4: Simplify right side
    7,486.50x = 21,783,718.65
  5. Step 5: Solve for x
    x = 21,783,718.65/7,486.50
  6. Step 6: Final answer
    x = 2,909.73

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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.