Home / 8,413.48-12,620.27-3,480.45

Finding the Fourth Proportional to 8,413.48, 12,620.27 and 3,480.45

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Solution

The fourth proportional to 8,413.48, 12,620.27 and 3,480.45 is: 5,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.48 : 12,620.27 = 3,480.45 : x
  2. Step 2: Convert to fraction form
    8,413.48/12,620.27 = 3,480.45/x
  3. Step 3: Cross multiply
    8,413.48x = 12,620.27 × 3,480.45
  4. Step 4: Simplify right side
    8,413.48x = 43,924,218.72
  5. Step 5: Solve for x
    x = 43,924,218.72/8,413.48
  6. Step 6: Final answer
    x = 5,220.70

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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.