Home / 7,883.09-11,825.85-2,687.75

Finding the Fourth Proportional to 7,883.09, 11,825.85 and 2,687.75

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Solution

The fourth proportional to 7,883.09, 11,825.85 and 2,687.75 is: 4,032.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.09 : 11,825.85 = 2,687.75 : x
  2. Step 2: Convert to fraction form
    7,883.09/11,825.85 = 2,687.75/x
  3. Step 3: Cross multiply
    7,883.09x = 11,825.85 × 2,687.75
  4. Step 4: Simplify right side
    7,883.09x = 31,784,928.34
  5. Step 5: Solve for x
    x = 31,784,928.34/7,883.09
  6. Step 6: Final answer
    x = 4,032.04

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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.