Home / 8,229.92-11,361.86-5,209.05

Finding the Fourth Proportional to 8,229.92, 11,361.86 and 5,209.05

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Solution

The fourth proportional to 8,229.92, 11,361.86 and 5,209.05 is: 7,191.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.92 : 11,361.86 = 5,209.05 : x
  2. Step 2: Convert to fraction form
    8,229.92/11,361.86 = 5,209.05/x
  3. Step 3: Cross multiply
    8,229.92x = 11,361.86 × 5,209.05
  4. Step 4: Simplify right side
    8,229.92x = 59,184,496.83
  5. Step 5: Solve for x
    x = 59,184,496.83/8,229.92
  6. Step 6: Final answer
    x = 7,191.38

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.