Home / 18,086.17-27,135.78-9,643.79

Finding the Fourth Proportional to 18,086.17, 27,135.78 and 9,643.79

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Solution

The fourth proportional to 18,086.17, 27,135.78 and 9,643.79 is: 14,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.17 : 27,135.78 = 9,643.79 : x
  2. Step 2: Convert to fraction form
    18,086.17/27,135.78 = 9,643.79/x
  3. Step 3: Cross multiply
    18,086.17x = 27,135.78 × 9,643.79
  4. Step 4: Simplify right side
    18,086.17x = 261,691,807.54
  5. Step 5: Solve for x
    x = 261,691,807.54/18,086.17
  6. Step 6: Final answer
    x = 14,469.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.