Home / 12,338.46-18,496.49-6,408.42

Finding the Fourth Proportional to 12,338.46, 18,496.49 and 6,408.42

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Solution

The fourth proportional to 12,338.46, 18,496.49 and 6,408.42 is: 9,606.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338.46 : 18,496.49 = 6,408.42 : x
  2. Step 2: Convert to fraction form
    12,338.46/18,496.49 = 6,408.42/x
  3. Step 3: Cross multiply
    12,338.46x = 18,496.49 × 6,408.42
  4. Step 4: Simplify right side
    12,338.46x = 118,533,183.96
  5. Step 5: Solve for x
    x = 118,533,183.96/12,338.46
  6. Step 6: Final answer
    x = 9,606.81

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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.