Home / 7,989.64-11,986.54-3,832.85

Finding the Fourth Proportional to 7,989.64, 11,986.54 and 3,832.85

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Solution

The fourth proportional to 7,989.64, 11,986.54 and 3,832.85 is: 5,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.64 : 11,986.54 = 3,832.85 : x
  2. Step 2: Convert to fraction form
    7,989.64/11,986.54 = 3,832.85/x
  3. Step 3: Cross multiply
    7,989.64x = 11,986.54 × 3,832.85
  4. Step 4: Simplify right side
    7,989.64x = 45,942,630.22
  5. Step 5: Solve for x
    x = 45,942,630.22/7,989.64
  6. Step 6: Final answer
    x = 5,750.28

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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.