Home / 18,131.28-27,197.94-4,983.36

Finding the Fourth Proportional to 18,131.28, 27,197.94 and 4,983.36

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Solution

The fourth proportional to 18,131.28, 27,197.94 and 4,983.36 is: 7,475.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.28 : 27,197.94 = 4,983.36 : x
  2. Step 2: Convert to fraction form
    18,131.28/27,197.94 = 4,983.36/x
  3. Step 3: Cross multiply
    18,131.28x = 27,197.94 × 4,983.36
  4. Step 4: Simplify right side
    18,131.28x = 135,537,126.28
  5. Step 5: Solve for x
    x = 135,537,126.28/18,131.28
  6. Step 6: Final answer
    x = 7,475.32

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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.