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Finding the Fourth Proportional to 18,380.76, 27,571.48 and 5,233.48

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Solution

The fourth proportional to 18,380.76, 27,571.48 and 5,233.48 is: 7,850.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.76 : 27,571.48 = 5,233.48 : x
  2. Step 2: Convert to fraction form
    18,380.76/27,571.48 = 5,233.48/x
  3. Step 3: Cross multiply
    18,380.76x = 27,571.48 × 5,233.48
  4. Step 4: Simplify right side
    18,380.76x = 144,294,789.15
  5. Step 5: Solve for x
    x = 144,294,789.15/18,380.76
  6. Step 6: Final answer
    x = 7,850.32

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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.