Home / 18,944.82-26,143.47-10,986.84

Finding the Fourth Proportional to 18,944.82, 26,143.47 and 10,986.84

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Solution

The fourth proportional to 18,944.82, 26,143.47 and 10,986.84 is: 15,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.82 : 26,143.47 = 10,986.84 : x
  2. Step 2: Convert to fraction form
    18,944.82/26,143.47 = 10,986.84/x
  3. Step 3: Cross multiply
    18,944.82x = 26,143.47 × 10,986.84
  4. Step 4: Simplify right side
    18,944.82x = 287,234,121.93
  5. Step 5: Solve for x
    x = 287,234,121.93/18,944.82
  6. Step 6: Final answer
    x = 15,161.62

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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.