Home / 7,183.78-9,912.53-4,039.36

Finding the Fourth Proportional to 7,183.78, 9,912.53 and 4,039.36

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Solution

The fourth proportional to 7,183.78, 9,912.53 and 4,039.36 is: 5,573.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.78 : 9,912.53 = 4,039.36 : x
  2. Step 2: Convert to fraction form
    7,183.78/9,912.53 = 4,039.36/x
  3. Step 3: Cross multiply
    7,183.78x = 9,912.53 × 4,039.36
  4. Step 4: Simplify right side
    7,183.78x = 40,040,262.50
  5. Step 5: Solve for x
    x = 40,040,262.50/7,183.78
  6. Step 6: Final answer
    x = 5,573.71

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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.