Home / 19,691.46-27,179.84-11,198.17

Finding the Fourth Proportional to 19,691.46, 27,179.84 and 11,198.17

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Solution

The fourth proportional to 19,691.46, 27,179.84 and 11,198.17 is: 15,456.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.46 : 27,179.84 = 11,198.17 : x
  2. Step 2: Convert to fraction form
    19,691.46/27,179.84 = 11,198.17/x
  3. Step 3: Cross multiply
    19,691.46x = 27,179.84 × 11,198.17
  4. Step 4: Simplify right side
    19,691.46x = 304,364,358.85
  5. Step 5: Solve for x
    x = 304,364,358.85/19,691.46
  6. Step 6: Final answer
    x = 15,456.67

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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.