Home / 8,268.05-11,413.64-5,287.91

Finding the Fourth Proportional to 8,268.05, 11,413.64 and 5,287.91

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Solution

The fourth proportional to 8,268.05, 11,413.64 and 5,287.91 is: 7,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.05 : 11,413.64 = 5,287.91 : x
  2. Step 2: Convert to fraction form
    8,268.05/11,413.64 = 5,287.91/x
  3. Step 3: Cross multiply
    8,268.05x = 11,413.64 × 5,287.91
  4. Step 4: Simplify right side
    8,268.05x = 60,354,257.24
  5. Step 5: Solve for x
    x = 60,354,257.24/8,268.05
  6. Step 6: Final answer
    x = 7,299.69

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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.