Home / 13,910.46-20,865.71-3,522.21

Finding the Fourth Proportional to 13,910.46, 20,865.71 and 3,522.21

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Solution

The fourth proportional to 13,910.46, 20,865.71 and 3,522.21 is: 5,283.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.46 : 20,865.71 = 3,522.21 : x
  2. Step 2: Convert to fraction form
    13,910.46/20,865.71 = 3,522.21/x
  3. Step 3: Cross multiply
    13,910.46x = 20,865.71 × 3,522.21
  4. Step 4: Simplify right side
    13,910.46x = 73,493,394.81
  5. Step 5: Solve for x
    x = 73,493,394.81/13,910.46
  6. Step 6: Final answer
    x = 5,283.32

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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.