Home / 10,040.55-13,855.57-5,791.78

Finding the Fourth Proportional to 10,040.55, 13,855.57 and 5,791.78

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Solution

The fourth proportional to 10,040.55, 13,855.57 and 5,791.78 is: 7,992.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.55 : 13,855.57 = 5,791.78 : x
  2. Step 2: Convert to fraction form
    10,040.55/13,855.57 = 5,791.78/x
  3. Step 3: Cross multiply
    10,040.55x = 13,855.57 × 5,791.78
  4. Step 4: Simplify right side
    10,040.55x = 80,248,413.21
  5. Step 5: Solve for x
    x = 80,248,413.21/10,040.55
  6. Step 6: Final answer
    x = 7,992.43

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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.