Home / 12,196.26-18,294.30-3,431.12

Finding the Fourth Proportional to 12,196.26, 18,294.30 and 3,431.12

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Solution

The fourth proportional to 12,196.26, 18,294.30 and 3,431.12 is: 5,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,196.26 : 18,294.30 = 3,431.12 : x
  2. Step 2: Convert to fraction form
    12,196.26/18,294.30 = 3,431.12/x
  3. Step 3: Cross multiply
    12,196.26x = 18,294.30 × 3,431.12
  4. Step 4: Simplify right side
    12,196.26x = 62,769,847.14
  5. Step 5: Solve for x
    x = 62,769,847.14/12,196.26
  6. Step 6: Final answer
    x = 5,146.65

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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.