Home / 19,155.11-28,736.19-8,625.38

Finding the Fourth Proportional to 19,155.11, 28,736.19 and 8,625.38

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Solution

The fourth proportional to 19,155.11, 28,736.19 and 8,625.38 is: 12,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.11 : 28,736.19 = 8,625.38 : x
  2. Step 2: Convert to fraction form
    19,155.11/28,736.19 = 8,625.38/x
  3. Step 3: Cross multiply
    19,155.11x = 28,736.19 × 8,625.38
  4. Step 4: Simplify right side
    19,155.11x = 247,860,414.82
  5. Step 5: Solve for x
    x = 247,860,414.82/19,155.11
  6. Step 6: Final answer
    x = 12,939.65

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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.