Home / 12,413.25-18,615.29-4,090.86

Finding the Fourth Proportional to 12,413.25, 18,615.29 and 4,090.86

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Solution

The fourth proportional to 12,413.25, 18,615.29 and 4,090.86 is: 6,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.25 : 18,615.29 = 4,090.86 : x
  2. Step 2: Convert to fraction form
    12,413.25/18,615.29 = 4,090.86/x
  3. Step 3: Cross multiply
    12,413.25x = 18,615.29 × 4,090.86
  4. Step 4: Simplify right side
    12,413.25x = 76,152,524.80
  5. Step 5: Solve for x
    x = 76,152,524.80/12,413.25
  6. Step 6: Final answer
    x = 6,134.78

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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.