Home / 13,786.94-20,692.35-7,217.72

Finding the Fourth Proportional to 13,786.94, 20,692.35 and 7,217.72

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Solution

The fourth proportional to 13,786.94, 20,692.35 and 7,217.72 is: 10,832.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.94 : 20,692.35 = 7,217.72 : x
  2. Step 2: Convert to fraction form
    13,786.94/20,692.35 = 7,217.72/x
  3. Step 3: Cross multiply
    13,786.94x = 20,692.35 × 7,217.72
  4. Step 4: Simplify right side
    13,786.94x = 149,351,588.44
  5. Step 5: Solve for x
    x = 149,351,588.44/13,786.94
  6. Step 6: Final answer
    x = 10,832.83

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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.