Home / 13,930.71-20,894.97-5,604.85

Finding the Fourth Proportional to 13,930.71, 20,894.97 and 5,604.85

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Solution

The fourth proportional to 13,930.71, 20,894.97 and 5,604.85 is: 8,406.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.71 : 20,894.97 = 5,604.85 : x
  2. Step 2: Convert to fraction form
    13,930.71/20,894.97 = 5,604.85/x
  3. Step 3: Cross multiply
    13,930.71x = 20,894.97 × 5,604.85
  4. Step 4: Simplify right side
    13,930.71x = 117,113,172.60
  5. Step 5: Solve for x
    x = 117,113,172.60/13,930.71
  6. Step 6: Final answer
    x = 8,406.83

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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.