Home / 11,517.30-15,894.68-6,413.49

Finding the Fourth Proportional to 11,517.30, 15,894.68 and 6,413.49

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Solution

The fourth proportional to 11,517.30, 15,894.68 and 6,413.49 is: 8,851.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.30 : 15,894.68 = 6,413.49 : x
  2. Step 2: Convert to fraction form
    11,517.30/15,894.68 = 6,413.49/x
  3. Step 3: Cross multiply
    11,517.30x = 15,894.68 × 6,413.49
  4. Step 4: Simplify right side
    11,517.30x = 101,940,339.17
  5. Step 5: Solve for x
    x = 101,940,339.17/11,517.30
  6. Step 6: Final answer
    x = 8,851.06

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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.