Home / 18,667.68-28,005.42-6,186.96

Finding the Fourth Proportional to 18,667.68, 28,005.42 and 6,186.96

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Solution

The fourth proportional to 18,667.68, 28,005.42 and 6,186.96 is: 9,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.68 : 28,005.42 = 6,186.96 : x
  2. Step 2: Convert to fraction form
    18,667.68/28,005.42 = 6,186.96/x
  3. Step 3: Cross multiply
    18,667.68x = 28,005.42 × 6,186.96
  4. Step 4: Simplify right side
    18,667.68x = 173,268,413.32
  5. Step 5: Solve for x
    x = 173,268,413.32/18,667.68
  6. Step 6: Final answer
    x = 9,281.73

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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.