Home / 18,936.11-26,131.94-10,983.06

Finding the Fourth Proportional to 18,936.11, 26,131.94 and 10,983.06

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Solution

The fourth proportional to 18,936.11, 26,131.94 and 10,983.06 is: 15,156.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.11 : 26,131.94 = 10,983.06 : x
  2. Step 2: Convert to fraction form
    18,936.11/26,131.94 = 10,983.06/x
  3. Step 3: Cross multiply
    18,936.11x = 26,131.94 × 10,983.06
  4. Step 4: Simplify right side
    18,936.11x = 287,008,664.94
  5. Step 5: Solve for x
    x = 287,008,664.94/18,936.11
  6. Step 6: Final answer
    x = 15,156.69

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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.