Home / 8,238.75-12,356.81-2,692.05

Finding the Fourth Proportional to 8,238.75, 12,356.81 and 2,692.05

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Solution

The fourth proportional to 8,238.75, 12,356.81 and 2,692.05 is: 4,037.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.75 : 12,356.81 = 2,692.05 : x
  2. Step 2: Convert to fraction form
    8,238.75/12,356.81 = 2,692.05/x
  3. Step 3: Cross multiply
    8,238.75x = 12,356.81 × 2,692.05
  4. Step 4: Simplify right side
    8,238.75x = 33,265,150.36
  5. Step 5: Solve for x
    x = 33,265,150.36/8,238.75
  6. Step 6: Final answer
    x = 4,037.65

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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.