Home / 12,395.11-17,105.12-6,729.73

Finding the Fourth Proportional to 12,395.11, 17,105.12 and 6,729.73

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Solution

The fourth proportional to 12,395.11, 17,105.12 and 6,729.73 is: 9,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.11 : 17,105.12 = 6,729.73 : x
  2. Step 2: Convert to fraction form
    12,395.11/17,105.12 = 6,729.73/x
  3. Step 3: Cross multiply
    12,395.11x = 17,105.12 × 6,729.73
  4. Step 4: Simplify right side
    12,395.11x = 115,112,813.28
  5. Step 5: Solve for x
    x = 115,112,813.28/12,395.11
  6. Step 6: Final answer
    x = 9,286.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.