Home / 13,413.24-18,508.77-7,445.16

Finding the Fourth Proportional to 13,413.24, 18,508.77 and 7,445.16

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Solution

The fourth proportional to 13,413.24, 18,508.77 and 7,445.16 is: 10,273.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.24 : 18,508.77 = 7,445.16 : x
  2. Step 2: Convert to fraction form
    13,413.24/18,508.77 = 7,445.16/x
  3. Step 3: Cross multiply
    13,413.24x = 18,508.77 × 7,445.16
  4. Step 4: Simplify right side
    13,413.24x = 137,800,754.05
  5. Step 5: Solve for x
    x = 137,800,754.05/13,413.24
  6. Step 6: Final answer
    x = 10,273.49

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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.