Home / 18,694.39-28,055.49-8,836.69

Finding the Fourth Proportional to 18,694.39, 28,055.49 and 8,836.69

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Solution

The fourth proportional to 18,694.39, 28,055.49 and 8,836.69 is: 13,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,694.39 : 28,055.49 = 8,836.69 : x
  2. Step 2: Convert to fraction form
    18,694.39/28,055.49 = 8,836.69/x
  3. Step 3: Cross multiply
    18,694.39x = 28,055.49 × 8,836.69
  4. Step 4: Simplify right side
    18,694.39x = 247,917,667.93
  5. Step 5: Solve for x
    x = 247,917,667.93/18,694.39
  6. Step 6: Final answer
    x = 13,261.61

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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.