Home / 13,553.25-20,331.42-3,692.64

Finding the Fourth Proportional to 13,553.25, 20,331.42 and 3,692.64

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Solution

The fourth proportional to 13,553.25, 20,331.42 and 3,692.64 is: 5,539.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.25 : 20,331.42 = 3,692.64 : x
  2. Step 2: Convert to fraction form
    13,553.25/20,331.42 = 3,692.64/x
  3. Step 3: Cross multiply
    13,553.25x = 20,331.42 × 3,692.64
  4. Step 4: Simplify right side
    13,553.25x = 75,076,614.75
  5. Step 5: Solve for x
    x = 75,076,614.75/13,553.25
  6. Step 6: Final answer
    x = 5,539.38

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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.