Home / 11,912.86-16,441.71-6,609.38

Finding the Fourth Proportional to 11,912.86, 16,441.71 and 6,609.38

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Solution

The fourth proportional to 11,912.86, 16,441.71 and 6,609.38 is: 9,122.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.86 : 16,441.71 = 6,609.38 : x
  2. Step 2: Convert to fraction form
    11,912.86/16,441.71 = 6,609.38/x
  3. Step 3: Cross multiply
    11,912.86x = 16,441.71 × 6,609.38
  4. Step 4: Simplify right side
    11,912.86x = 108,669,513.32
  5. Step 5: Solve for x
    x = 108,669,513.32/11,912.86
  6. Step 6: Final answer
    x = 9,122.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.