Home / 13,799.42-20,692.98-3,936.39

Finding the Fourth Proportional to 13,799.42, 20,692.98 and 3,936.39

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Solution

The fourth proportional to 13,799.42, 20,692.98 and 3,936.39 is: 5,902.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.42 : 20,692.98 = 3,936.39 : x
  2. Step 2: Convert to fraction form
    13,799.42/20,692.98 = 3,936.39/x
  3. Step 3: Cross multiply
    13,799.42x = 20,692.98 × 3,936.39
  4. Step 4: Simplify right side
    13,799.42x = 81,455,639.54
  5. Step 5: Solve for x
    x = 81,455,639.54/13,799.42
  6. Step 6: Final answer
    x = 5,902.83

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1.5x scale

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.