Home / 11,813.28-17,719.94-11,091.57

Finding the Fourth Proportional to 11,813.28, 17,719.94 and 11,091.57

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Solution

The fourth proportional to 11,813.28, 17,719.94 and 11,091.57 is: 16,637.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813.28 : 17,719.94 = 11,091.57 : x
  2. Step 2: Convert to fraction form
    11,813.28/17,719.94 = 11,091.57/x
  3. Step 3: Cross multiply
    11,813.28x = 17,719.94 × 11,091.57
  4. Step 4: Simplify right side
    11,813.28x = 196,541,954.91
  5. Step 5: Solve for x
    x = 196,541,954.91/11,813.28
  6. Step 6: Final answer
    x = 16,637.37

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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.