Home / 15,118.78-22,670.39-6,791.65

Finding the Fourth Proportional to 15,118.78, 22,670.39 and 6,791.65

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Solution

The fourth proportional to 15,118.78, 22,670.39 and 6,791.65 is: 10,183.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,118.78 : 22,670.39 = 6,791.65 : x
  2. Step 2: Convert to fraction form
    15,118.78/22,670.39 = 6,791.65/x
  3. Step 3: Cross multiply
    15,118.78x = 22,670.39 × 6,791.65
  4. Step 4: Simplify right side
    15,118.78x = 153,969,206.93
  5. Step 5: Solve for x
    x = 153,969,206.93/15,118.78
  6. Step 6: Final answer
    x = 10,183.97

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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.