Home / 15,413.22-21,272.27-11,445.66

Finding the Fourth Proportional to 15,413.22, 21,272.27 and 11,445.66

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Solution

The fourth proportional to 15,413.22, 21,272.27 and 11,445.66 is: 15,796.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.22 : 21,272.27 = 11,445.66 : x
  2. Step 2: Convert to fraction form
    15,413.22/21,272.27 = 11,445.66/x
  3. Step 3: Cross multiply
    15,413.22x = 21,272.27 × 11,445.66
  4. Step 4: Simplify right side
    15,413.22x = 243,475,112.62
  5. Step 5: Solve for x
    x = 243,475,112.62/15,413.22
  6. Step 6: Final answer
    x = 15,796.51

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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.