Home / 18,278.37-27,408.92-8,414.73

Finding the Fourth Proportional to 18,278.37, 27,408.92 and 8,414.73

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Solution

The fourth proportional to 18,278.37, 27,408.92 and 8,414.73 is: 12,618.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.37 : 27,408.92 = 8,414.73 : x
  2. Step 2: Convert to fraction form
    18,278.37/27,408.92 = 8,414.73/x
  3. Step 3: Cross multiply
    18,278.37x = 27,408.92 × 8,414.73
  4. Step 4: Simplify right side
    18,278.37x = 230,638,619.32
  5. Step 5: Solve for x
    x = 230,638,619.32/18,278.37
  6. Step 6: Final answer
    x = 12,618.12

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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.