Home / 19,185.05-28,745.90-8,773.85

Finding the Fourth Proportional to 19,185.05, 28,745.90 and 8,773.85

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Solution

The fourth proportional to 19,185.05, 28,745.90 and 8,773.85 is: 13,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.05 : 28,745.90 = 8,773.85 : x
  2. Step 2: Convert to fraction form
    19,185.05/28,745.90 = 8,773.85/x
  3. Step 3: Cross multiply
    19,185.05x = 28,745.90 × 8,773.85
  4. Step 4: Simplify right side
    19,185.05x = 252,212,170.85
  5. Step 5: Solve for x
    x = 252,212,170.85/19,185.05
  6. Step 6: Final answer
    x = 13,146.29

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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.