Home / 10,891.82-15,028.38-6,413.93

Finding the Fourth Proportional to 10,891.82, 15,028.38 and 6,413.93

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Solution

The fourth proportional to 10,891.82, 15,028.38 and 6,413.93 is: 8,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.82 : 15,028.38 = 6,413.93 : x
  2. Step 2: Convert to fraction form
    10,891.82/15,028.38 = 6,413.93/x
  3. Step 3: Cross multiply
    10,891.82x = 15,028.38 × 6,413.93
  4. Step 4: Simplify right side
    10,891.82x = 96,390,977.33
  5. Step 5: Solve for x
    x = 96,390,977.33/10,891.82
  6. Step 6: Final answer
    x = 8,849.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.