Home / 12,511.69-18,764.73-3,745.48

Finding the Fourth Proportional to 12,511.69, 18,764.73 and 3,745.48

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Solution

The fourth proportional to 12,511.69, 18,764.73 and 3,745.48 is: 5,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.69 : 18,764.73 = 3,745.48 : x
  2. Step 2: Convert to fraction form
    12,511.69/18,764.73 = 3,745.48/x
  3. Step 3: Cross multiply
    12,511.69x = 18,764.73 × 3,745.48
  4. Step 4: Simplify right side
    12,511.69x = 70,282,920.92
  5. Step 5: Solve for x
    x = 70,282,920.92/12,511.69
  6. Step 6: Final answer
    x = 5,617.38

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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.