Home / 7,413.12-11,118.60-4,490.64

Finding the Fourth Proportional to 7,413.12, 11,118.60 and 4,490.64

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Solution

The fourth proportional to 7,413.12, 11,118.60 and 4,490.64 is: 6,735.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.12 : 11,118.60 = 4,490.64 : x
  2. Step 2: Convert to fraction form
    7,413.12/11,118.60 = 4,490.64/x
  3. Step 3: Cross multiply
    7,413.12x = 11,118.60 × 4,490.64
  4. Step 4: Simplify right side
    7,413.12x = 49,929,629.90
  5. Step 5: Solve for x
    x = 49,929,629.90/7,413.12
  6. Step 6: Final answer
    x = 6,735.31

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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.