Home / 19,141.25-26,413.02-11,969.78

Finding the Fourth Proportional to 19,141.25, 26,413.02 and 11,969.78

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Solution

The fourth proportional to 19,141.25, 26,413.02 and 11,969.78 is: 16,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.25 : 26,413.02 = 11,969.78 : x
  2. Step 2: Convert to fraction form
    19,141.25/26,413.02 = 11,969.78/x
  3. Step 3: Cross multiply
    19,141.25x = 26,413.02 × 11,969.78
  4. Step 4: Simplify right side
    19,141.25x = 316,157,906.47
  5. Step 5: Solve for x
    x = 316,157,906.47/19,141.25
  6. Step 6: Final answer
    x = 16,517.10

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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.