Home / 18,286.44-27,408.96-8,405.31

Finding the Fourth Proportional to 18,286.44, 27,408.96 and 8,405.31

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Solution

The fourth proportional to 18,286.44, 27,408.96 and 8,405.31 is: 12,598.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.44 : 27,408.96 = 8,405.31 : x
  2. Step 2: Convert to fraction form
    18,286.44/27,408.96 = 8,405.31/x
  3. Step 3: Cross multiply
    18,286.44x = 27,408.96 × 8,405.31
  4. Step 4: Simplify right side
    18,286.44x = 230,380,805.58
  5. Step 5: Solve for x
    x = 230,380,805.58/18,286.44
  6. Step 6: Final answer
    x = 12,598.45

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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.