Home / 18,511.27-27,767.66-15,413.12

Finding the Fourth Proportional to 18,511.27, 27,767.66 and 15,413.12

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Solution

The fourth proportional to 18,511.27, 27,767.66 and 15,413.12 is: 23,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.27 : 27,767.66 = 15,413.12 : x
  2. Step 2: Convert to fraction form
    18,511.27/27,767.66 = 15,413.12/x
  3. Step 3: Cross multiply
    18,511.27x = 27,767.66 × 15,413.12
  4. Step 4: Simplify right side
    18,511.27x = 427,986,250.62
  5. Step 5: Solve for x
    x = 427,986,250.62/18,511.27
  6. Step 6: Final answer
    x = 23,120.31

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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.