Home / 10,692.20-16,040.82-4,118.60

Finding the Fourth Proportional to 10,692.20, 16,040.82 and 4,118.60

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Solution

The fourth proportional to 10,692.20, 16,040.82 and 4,118.60 is: 6,178.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,692.20 : 16,040.82 = 4,118.60 : x
  2. Step 2: Convert to fraction form
    10,692.20/16,040.82 = 4,118.60/x
  3. Step 3: Cross multiply
    10,692.20x = 16,040.82 × 4,118.60
  4. Step 4: Simplify right side
    10,692.20x = 66,065,721.25
  5. Step 5: Solve for x
    x = 66,065,721.25/10,692.20
  6. Step 6: Final answer
    x = 6,178.87

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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.