Home / 12,338.21-18,496.12-6,408.16

Finding the Fourth Proportional to 12,338.21, 18,496.12 and 6,408.16

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Solution

The fourth proportional to 12,338.21, 18,496.12 and 6,408.16 is: 9,606.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338.21 : 18,496.12 = 6,408.16 : x
  2. Step 2: Convert to fraction form
    12,338.21/18,496.12 = 6,408.16/x
  3. Step 3: Cross multiply
    12,338.21x = 18,496.12 × 6,408.16
  4. Step 4: Simplify right side
    12,338.21x = 118,526,110.54
  5. Step 5: Solve for x
    x = 118,526,110.54/12,338.21
  6. Step 6: Final answer
    x = 9,606.43

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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.