Home / 8,958.78-13,413.51-6,760.85

Finding the Fourth Proportional to 8,958.78, 13,413.51 and 6,760.85

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Solution

The fourth proportional to 8,958.78, 13,413.51 and 6,760.85 is: 10,122.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.78 : 13,413.51 = 6,760.85 : x
  2. Step 2: Convert to fraction form
    8,958.78/13,413.51 = 6,760.85/x
  3. Step 3: Cross multiply
    8,958.78x = 13,413.51 × 6,760.85
  4. Step 4: Simplify right side
    8,958.78x = 90,686,662.02
  5. Step 5: Solve for x
    x = 90,686,662.02/8,958.78
  6. Step 6: Final answer
    x = 10,122.66

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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.