Home / 13,839.28-20,758.94-11,083.48

Finding the Fourth Proportional to 13,839.28, 20,758.94 and 11,083.48

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Solution

The fourth proportional to 13,839.28, 20,758.94 and 11,083.48 is: 16,625.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.28 : 20,758.94 = 11,083.48 : x
  2. Step 2: Convert to fraction form
    13,839.28/20,758.94 = 11,083.48/x
  3. Step 3: Cross multiply
    13,839.28x = 20,758.94 × 11,083.48
  4. Step 4: Simplify right side
    13,839.28x = 230,081,137.10
  5. Step 5: Solve for x
    x = 230,081,137.10/13,839.28
  6. Step 6: Final answer
    x = 16,625.23

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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.