Home / 11,692.75-16,137.11-6,388.37

Finding the Fourth Proportional to 11,692.75, 16,137.11 and 6,388.37

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Solution

The fourth proportional to 11,692.75, 16,137.11 and 6,388.37 is: 8,816.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,692.75 : 16,137.11 = 6,388.37 : x
  2. Step 2: Convert to fraction form
    11,692.75/16,137.11 = 6,388.37/x
  3. Step 3: Cross multiply
    11,692.75x = 16,137.11 × 6,388.37
  4. Step 4: Simplify right side
    11,692.75x = 103,089,716.78
  5. Step 5: Solve for x
    x = 103,089,716.78/11,692.75
  6. Step 6: Final answer
    x = 8,816.55

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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.