Home / 13,770.54-20,604.78-8,226.90

Finding the Fourth Proportional to 13,770.54, 20,604.78 and 8,226.90

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Solution

The fourth proportional to 13,770.54, 20,604.78 and 8,226.90 is: 12,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.54 : 20,604.78 = 8,226.90 : x
  2. Step 2: Convert to fraction form
    13,770.54/20,604.78 = 8,226.90/x
  3. Step 3: Cross multiply
    13,770.54x = 20,604.78 × 8,226.90
  4. Step 4: Simplify right side
    13,770.54x = 169,513,464.58
  5. Step 5: Solve for x
    x = 169,513,464.58/13,770.54
  6. Step 6: Final answer
    x = 12,309.86

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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.