Home / 11,389.57-17,081.01-3,992.65

Finding the Fourth Proportional to 11,389.57, 17,081.01 and 3,992.65

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Solution

The fourth proportional to 11,389.57, 17,081.01 and 3,992.65 is: 5,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.57 : 17,081.01 = 3,992.65 : x
  2. Step 2: Convert to fraction form
    11,389.57/17,081.01 = 3,992.65/x
  3. Step 3: Cross multiply
    11,389.57x = 17,081.01 × 3,992.65
  4. Step 4: Simplify right side
    11,389.57x = 68,198,451.87
  5. Step 5: Solve for x
    x = 68,198,451.87/11,389.57
  6. Step 6: Final answer
    x = 5,987.80

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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.