Home / 13,910.82-20,866.64-3,522.57

Finding the Fourth Proportional to 13,910.82, 20,866.64 and 3,522.57

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Solution

The fourth proportional to 13,910.82, 20,866.64 and 3,522.57 is: 5,283.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.82 : 20,866.64 = 3,522.57 : x
  2. Step 2: Convert to fraction form
    13,910.82/20,866.64 = 3,522.57/x
  3. Step 3: Cross multiply
    13,910.82x = 20,866.64 × 3,522.57
  4. Step 4: Simplify right side
    13,910.82x = 73,504,182.45
  5. Step 5: Solve for x
    x = 73,504,182.45/13,910.82
  6. Step 6: Final answer
    x = 5,283.96

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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.