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Finding the Fourth Proportional to 18,093.96, 27,138.78 and 4,947.48

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Solution

The fourth proportional to 18,093.96, 27,138.78 and 4,947.48 is: 7,420.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,093.96 : 27,138.78 = 4,947.48 : x
  2. Step 2: Convert to fraction form
    18,093.96/27,138.78 = 4,947.48/x
  3. Step 3: Cross multiply
    18,093.96x = 27,138.78 × 4,947.48
  4. Step 4: Simplify right side
    18,093.96x = 134,268,571.27
  5. Step 5: Solve for x
    x = 134,268,571.27/18,093.96
  6. Step 6: Final answer
    x = 7,420.63

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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.