Home / 10,809.12-16,215.60-3,692.97

Finding the Fourth Proportional to 10,809.12, 16,215.60 and 3,692.97

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Solution

The fourth proportional to 10,809.12, 16,215.60 and 3,692.97 is: 5,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,809.12 : 16,215.60 = 3,692.97 : x
  2. Step 2: Convert to fraction form
    10,809.12/16,215.60 = 3,692.97/x
  3. Step 3: Cross multiply
    10,809.12x = 16,215.60 × 3,692.97
  4. Step 4: Simplify right side
    10,809.12x = 59,883,724.33
  5. Step 5: Solve for x
    x = 59,883,724.33/10,809.12
  6. Step 6: Final answer
    x = 5,540.11

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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.