Home / 19,175.80-28,753.94-8,778.64

Finding the Fourth Proportional to 19,175.80, 28,753.94 and 8,778.64

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Solution

The fourth proportional to 19,175.80, 28,753.94 and 8,778.64 is: 13,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,175.80 : 28,753.94 = 8,778.64 : x
  2. Step 2: Convert to fraction form
    19,175.80/28,753.94 = 8,778.64/x
  3. Step 3: Cross multiply
    19,175.80x = 28,753.94 × 8,778.64
  4. Step 4: Simplify right side
    19,175.80x = 252,420,487.84
  5. Step 5: Solve for x
    x = 252,420,487.84/19,175.80
  6. Step 6: Final answer
    x = 13,163.49

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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.