Home / 19,864.86-27,413.68-10,912.56

Finding the Fourth Proportional to 19,864.86, 27,413.68 and 10,912.56

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Solution

The fourth proportional to 19,864.86, 27,413.68 and 10,912.56 is: 15,059.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.86 : 27,413.68 = 10,912.56 : x
  2. Step 2: Convert to fraction form
    19,864.86/27,413.68 = 10,912.56/x
  3. Step 3: Cross multiply
    19,864.86x = 27,413.68 × 10,912.56
  4. Step 4: Simplify right side
    19,864.86x = 299,153,427.82
  5. Step 5: Solve for x
    x = 299,153,427.82/19,864.86
  6. Step 6: Final answer
    x = 15,059.43

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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.