Home / 11,231.65-15,499.85-6,195.78

Finding the Fourth Proportional to 11,231.65, 15,499.85 and 6,195.78

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Solution

The fourth proportional to 11,231.65, 15,499.85 and 6,195.78 is: 8,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.65 : 15,499.85 = 6,195.78 : x
  2. Step 2: Convert to fraction form
    11,231.65/15,499.85 = 6,195.78/x
  3. Step 3: Cross multiply
    11,231.65x = 15,499.85 × 6,195.78
  4. Step 4: Simplify right side
    11,231.65x = 96,033,583.13
  5. Step 5: Solve for x
    x = 96,033,583.13/11,231.65
  6. Step 6: Final answer
    x = 8,550.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.