Home / 13,235.14-19,855.76-3,874.95

Finding the Fourth Proportional to 13,235.14, 19,855.76 and 3,874.95

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Solution

The fourth proportional to 13,235.14, 19,855.76 and 3,874.95 is: 5,813.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.14 : 19,855.76 = 3,874.95 : x
  2. Step 2: Convert to fraction form
    13,235.14/19,855.76 = 3,874.95/x
  3. Step 3: Cross multiply
    13,235.14x = 19,855.76 × 3,874.95
  4. Step 4: Simplify right side
    13,235.14x = 76,940,077.21
  5. Step 5: Solve for x
    x = 76,940,077.21/13,235.14
  6. Step 6: Final answer
    x = 5,813.32

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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.