Home / 13,286.39-19,932.32-11,110.32

Finding the Fourth Proportional to 13,286.39, 19,932.32 and 11,110.32

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Solution

The fourth proportional to 13,286.39, 19,932.32 and 11,110.32 is: 16,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.39 : 19,932.32 = 11,110.32 : x
  2. Step 2: Convert to fraction form
    13,286.39/19,932.32 = 11,110.32/x
  3. Step 3: Cross multiply
    13,286.39x = 19,932.32 × 11,110.32
  4. Step 4: Simplify right side
    13,286.39x = 221,454,481.32
  5. Step 5: Solve for x
    x = 221,454,481.32/13,286.39
  6. Step 6: Final answer
    x = 16,667.78

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1.5x scale

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.