Home / 8,111.50-11,183.73-6,769.04

Finding the Fourth Proportional to 8,111.50, 11,183.73 and 6,769.04

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Solution

The fourth proportional to 8,111.50, 11,183.73 and 6,769.04 is: 9,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.50 : 11,183.73 = 6,769.04 : x
  2. Step 2: Convert to fraction form
    8,111.50/11,183.73 = 6,769.04/x
  3. Step 3: Cross multiply
    8,111.50x = 11,183.73 × 6,769.04
  4. Step 4: Simplify right side
    8,111.50x = 75,703,115.72
  5. Step 5: Solve for x
    x = 75,703,115.72/8,111.50
  6. Step 6: Final answer
    x = 9,332.81

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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.