Home / 18,654.39-27,975.78-6,171.61

Finding the Fourth Proportional to 18,654.39, 27,975.78 and 6,171.61

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Solution

The fourth proportional to 18,654.39, 27,975.78 and 6,171.61 is: 9,255.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.39 : 27,975.78 = 6,171.61 : x
  2. Step 2: Convert to fraction form
    18,654.39/27,975.78 = 6,171.61/x
  3. Step 3: Cross multiply
    18,654.39x = 27,975.78 × 6,171.61
  4. Step 4: Simplify right side
    18,654.39x = 172,655,603.61
  5. Step 5: Solve for x
    x = 172,655,603.61/18,654.39
  6. Step 6: Final answer
    x = 9,255.49

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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.