Home / 12,413.80-17,136.42-8,831.08

Finding the Fourth Proportional to 12,413.80, 17,136.42 and 8,831.08

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Solution

The fourth proportional to 12,413.80, 17,136.42 and 8,831.08 is: 12,190.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.80 : 17,136.42 = 8,831.08 : x
  2. Step 2: Convert to fraction form
    12,413.80/17,136.42 = 8,831.08/x
  3. Step 3: Cross multiply
    12,413.80x = 17,136.42 × 8,831.08
  4. Step 4: Simplify right side
    12,413.80x = 151,333,095.93
  5. Step 5: Solve for x
    x = 151,333,095.93/12,413.80
  6. Step 6: Final answer
    x = 12,190.71

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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.