Home / 7,278.56-10,039.92-5,183.36

Finding the Fourth Proportional to 7,278.56, 10,039.92 and 5,183.36

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Solution

The fourth proportional to 7,278.56, 10,039.92 and 5,183.36 is: 7,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.56 : 10,039.92 = 5,183.36 : x
  2. Step 2: Convert to fraction form
    7,278.56/10,039.92 = 5,183.36/x
  3. Step 3: Cross multiply
    7,278.56x = 10,039.92 × 5,183.36
  4. Step 4: Simplify right side
    7,278.56x = 52,040,519.73
  5. Step 5: Solve for x
    x = 52,040,519.73/7,278.56
  6. Step 6: Final answer
    x = 7,149.84

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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.