Home / 11,222.28-16,833.42-3,431.09

Finding the Fourth Proportional to 11,222.28, 16,833.42 and 3,431.09

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Solution

The fourth proportional to 11,222.28, 16,833.42 and 3,431.09 is: 5,146.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.28 : 16,833.42 = 3,431.09 : x
  2. Step 2: Convert to fraction form
    11,222.28/16,833.42 = 3,431.09/x
  3. Step 3: Cross multiply
    11,222.28x = 16,833.42 × 3,431.09
  4. Step 4: Simplify right side
    11,222.28x = 57,757,021.11
  5. Step 5: Solve for x
    x = 57,757,021.11/11,222.28
  6. Step 6: Final answer
    x = 5,146.64

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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.