Home / 9,413.28-12,989.82-5,163.54

Finding the Fourth Proportional to 9,413.28, 12,989.82 and 5,163.54

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Solution

The fourth proportional to 9,413.28, 12,989.82 and 5,163.54 is: 7,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,413.28 : 12,989.82 = 5,163.54 : x
  2. Step 2: Convert to fraction form
    9,413.28/12,989.82 = 5,163.54/x
  3. Step 3: Cross multiply
    9,413.28x = 12,989.82 × 5,163.54
  4. Step 4: Simplify right side
    9,413.28x = 67,073,455.16
  5. Step 5: Solve for x
    x = 67,073,455.16/9,413.28
  6. Step 6: Final answer
    x = 7,125.41

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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.