Home / 7,413.68-11,121.12-2,219.52

Finding the Fourth Proportional to 7,413.68, 11,121.12 and 2,219.52

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Solution

The fourth proportional to 7,413.68, 11,121.12 and 2,219.52 is: 3,329.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.68 : 11,121.12 = 2,219.52 : x
  2. Step 2: Convert to fraction form
    7,413.68/11,121.12 = 2,219.52/x
  3. Step 3: Cross multiply
    7,413.68x = 11,121.12 × 2,219.52
  4. Step 4: Simplify right side
    7,413.68x = 24,683,548.26
  5. Step 5: Solve for x
    x = 24,683,548.26/7,413.68
  6. Step 6: Final answer
    x = 3,329.46

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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.