Home / 12,966.12-19,444.29-4,198.68

Finding the Fourth Proportional to 12,966.12, 19,444.29 and 4,198.68

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Solution

The fourth proportional to 12,966.12, 19,444.29 and 4,198.68 is: 6,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.12 : 19,444.29 = 4,198.68 : x
  2. Step 2: Convert to fraction form
    12,966.12/19,444.29 = 4,198.68/x
  3. Step 3: Cross multiply
    12,966.12x = 19,444.29 × 4,198.68
  4. Step 4: Simplify right side
    12,966.12x = 81,640,351.54
  5. Step 5: Solve for x
    x = 81,640,351.54/12,966.12
  6. Step 6: Final answer
    x = 6,296.44

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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.