Home / 18,122.56-27,179.58-4,975.96

Finding the Fourth Proportional to 18,122.56, 27,179.58 and 4,975.96

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Solution

The fourth proportional to 18,122.56, 27,179.58 and 4,975.96 is: 7,462.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.56 : 27,179.58 = 4,975.96 : x
  2. Step 2: Convert to fraction form
    18,122.56/27,179.58 = 4,975.96/x
  3. Step 3: Cross multiply
    18,122.56x = 27,179.58 × 4,975.96
  4. Step 4: Simplify right side
    18,122.56x = 135,244,502.90
  5. Step 5: Solve for x
    x = 135,244,502.90/18,122.56
  6. Step 6: Final answer
    x = 7,462.77

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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.