Home / 10,692.80-16,035.54-5,425.78

Finding the Fourth Proportional to 10,692.80, 16,035.54 and 5,425.78

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Solution

The fourth proportional to 10,692.80, 16,035.54 and 5,425.78 is: 8,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,692.80 : 16,035.54 = 5,425.78 : x
  2. Step 2: Convert to fraction form
    10,692.80/16,035.54 = 5,425.78/x
  3. Step 3: Cross multiply
    10,692.80x = 16,035.54 × 5,425.78
  4. Step 4: Simplify right side
    10,692.80x = 87,005,232.04
  5. Step 5: Solve for x
    x = 87,005,232.04/10,692.80
  6. Step 6: Final answer
    x = 8,136.81

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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.