Home / 19,865.61-27,413.19-10,913.49

Finding the Fourth Proportional to 19,865.61, 27,413.19 and 10,913.49

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Solution

The fourth proportional to 19,865.61, 27,413.19 and 10,913.49 is: 15,059.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.61 : 27,413.19 = 10,913.49 : x
  2. Step 2: Convert to fraction form
    19,865.61/27,413.19 = 10,913.49/x
  3. Step 3: Cross multiply
    19,865.61x = 27,413.19 × 10,913.49
  4. Step 4: Simplify right side
    19,865.61x = 299,173,574.93
  5. Step 5: Solve for x
    x = 299,173,574.93/19,865.61
  6. Step 6: Final answer
    x = 15,059.87

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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.