Home / 8,939.72-13,408.86-3,673.22

Finding the Fourth Proportional to 8,939.72, 13,408.86 and 3,673.22

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Solution

The fourth proportional to 8,939.72, 13,408.86 and 3,673.22 is: 5,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.72 : 13,408.86 = 3,673.22 : x
  2. Step 2: Convert to fraction form
    8,939.72/13,408.86 = 3,673.22/x
  3. Step 3: Cross multiply
    8,939.72x = 13,408.86 × 3,673.22
  4. Step 4: Simplify right side
    8,939.72x = 49,253,692.73
  5. Step 5: Solve for x
    x = 49,253,692.73/8,939.72
  6. Step 6: Final answer
    x = 5,509.53

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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.