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Finding the Fourth Proportional to 18,141.44, 27,207.90 and 4,994.87

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Solution

The fourth proportional to 18,141.44, 27,207.90 and 4,994.87 is: 7,491.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,141.44 : 27,207.90 = 4,994.87 : x
  2. Step 2: Convert to fraction form
    18,141.44/27,207.90 = 4,994.87/x
  3. Step 3: Cross multiply
    18,141.44x = 27,207.90 × 4,994.87
  4. Step 4: Simplify right side
    18,141.44x = 135,899,787.43
  5. Step 5: Solve for x
    x = 135,899,787.43/18,141.44
  6. Step 6: Final answer
    x = 7,491.13

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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.