Home / 7,821.93-11,729.94-2,555.73

Finding the Fourth Proportional to 7,821.93, 11,729.94 and 2,555.73

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Solution

The fourth proportional to 7,821.93, 11,729.94 and 2,555.73 is: 3,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.93 : 11,729.94 = 2,555.73 : x
  2. Step 2: Convert to fraction form
    7,821.93/11,729.94 = 2,555.73/x
  3. Step 3: Cross multiply
    7,821.93x = 11,729.94 × 2,555.73
  4. Step 4: Simplify right side
    7,821.93x = 29,978,559.56
  5. Step 5: Solve for x
    x = 29,978,559.56/7,821.93
  6. Step 6: Final answer
    x = 3,832.63

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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.