Home / 11,172.89-16,761.15-3,777.80

Finding the Fourth Proportional to 11,172.89, 16,761.15 and 3,777.80

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Solution

The fourth proportional to 11,172.89, 16,761.15 and 3,777.80 is: 5,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.89 : 16,761.15 = 3,777.80 : x
  2. Step 2: Convert to fraction form
    11,172.89/16,761.15 = 3,777.80/x
  3. Step 3: Cross multiply
    11,172.89x = 16,761.15 × 3,777.80
  4. Step 4: Simplify right side
    11,172.89x = 63,320,188.66
  5. Step 5: Solve for x
    x = 63,320,188.66/11,172.89
  6. Step 6: Final answer
    x = 5,667.30

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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.