Home / 13,796.46-20,694.69-3,408.21

Finding the Fourth Proportional to 13,796.46, 20,694.69 and 3,408.21

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Solution

The fourth proportional to 13,796.46, 20,694.69 and 3,408.21 is: 5,112.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,796.46 : 20,694.69 = 3,408.21 : x
  2. Step 2: Convert to fraction form
    13,796.46/20,694.69 = 3,408.21/x
  3. Step 3: Cross multiply
    13,796.46x = 20,694.69 × 3,408.21
  4. Step 4: Simplify right side
    13,796.46x = 70,531,849.40
  5. Step 5: Solve for x
    x = 70,531,849.40/13,796.46
  6. Step 6: Final answer
    x = 5,112.32

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Similar ratio
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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.