Home / 8,413.20-11,611.08-5,057.10

Finding the Fourth Proportional to 8,413.20, 11,611.08 and 5,057.10

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Solution

The fourth proportional to 8,413.20, 11,611.08 and 5,057.10 is: 6,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.20 : 11,611.08 = 5,057.10 : x
  2. Step 2: Convert to fraction form
    8,413.20/11,611.08 = 5,057.10/x
  3. Step 3: Cross multiply
    8,413.20x = 11,611.08 × 5,057.10
  4. Step 4: Simplify right side
    8,413.20x = 58,718,392.67
  5. Step 5: Solve for x
    x = 58,718,392.67/8,413.20
  6. Step 6: Final answer
    x = 6,979.32

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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.