Home / 13,413.29-18,508.19-7,444.82

Finding the Fourth Proportional to 13,413.29, 18,508.19 and 7,444.82

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Solution

The fourth proportional to 13,413.29, 18,508.19 and 7,444.82 is: 10,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.29 : 18,508.19 = 7,444.82 : x
  2. Step 2: Convert to fraction form
    13,413.29/18,508.19 = 7,444.82/x
  3. Step 3: Cross multiply
    13,413.29x = 18,508.19 × 7,444.82
  4. Step 4: Simplify right side
    13,413.29x = 137,790,013.31
  5. Step 5: Solve for x
    x = 137,790,013.31/13,413.29
  6. Step 6: Final answer
    x = 10,272.65

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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.