Home / 19,865.27-27,413.20-10,912.25

Finding the Fourth Proportional to 19,865.27, 27,413.20 and 10,912.25

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Solution

The fourth proportional to 19,865.27, 27,413.20 and 10,912.25 is: 15,058.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.27 : 27,413.20 = 10,912.25 : x
  2. Step 2: Convert to fraction form
    19,865.27/27,413.20 = 10,912.25/x
  3. Step 3: Cross multiply
    19,865.27x = 27,413.20 × 10,912.25
  4. Step 4: Simplify right side
    19,865.27x = 299,139,527.35
  5. Step 5: Solve for x
    x = 299,139,527.35/19,865.27
  6. Step 6: Final answer
    x = 15,058.42

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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.