Home / 13,414.36-20,121.54-3,554.41

Finding the Fourth Proportional to 13,414.36, 20,121.54 and 3,554.41

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Solution

The fourth proportional to 13,414.36, 20,121.54 and 3,554.41 is: 5,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.36 : 20,121.54 = 3,554.41 : x
  2. Step 2: Convert to fraction form
    13,414.36/20,121.54 = 3,554.41/x
  3. Step 3: Cross multiply
    13,414.36x = 20,121.54 × 3,554.41
  4. Step 4: Simplify right side
    13,414.36x = 71,520,202.99
  5. Step 5: Solve for x
    x = 71,520,202.99/13,414.36
  6. Step 6: Final answer
    x = 5,331.62

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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.