Home / 11,170.36-15,413.25-6,455.08

Finding the Fourth Proportional to 11,170.36, 15,413.25 and 6,455.08

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Solution

The fourth proportional to 11,170.36, 15,413.25 and 6,455.08 is: 8,906.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,170.36 : 15,413.25 = 6,455.08 : x
  2. Step 2: Convert to fraction form
    11,170.36/15,413.25 = 6,455.08/x
  3. Step 3: Cross multiply
    11,170.36x = 15,413.25 × 6,455.08
  4. Step 4: Simplify right side
    11,170.36x = 99,493,761.81
  5. Step 5: Solve for x
    x = 99,493,761.81/11,170.36
  6. Step 6: Final answer
    x = 8,906.94

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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.