Home / 19,142.16-26,413.83-11,178.60

Finding the Fourth Proportional to 19,142.16, 26,413.83 and 11,178.60

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Solution

The fourth proportional to 19,142.16, 26,413.83 and 11,178.60 is: 15,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.16 : 26,413.83 = 11,178.60 : x
  2. Step 2: Convert to fraction form
    19,142.16/26,413.83 = 11,178.60/x
  3. Step 3: Cross multiply
    19,142.16x = 26,413.83 × 11,178.60
  4. Step 4: Simplify right side
    19,142.16x = 295,269,640.04
  5. Step 5: Solve for x
    x = 295,269,640.04/19,142.16
  6. Step 6: Final answer
    x = 15,425.10

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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.