Home / 18,320.82-27,475.62-5,169.66

Finding the Fourth Proportional to 18,320.82, 27,475.62 and 5,169.66

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Solution

The fourth proportional to 18,320.82, 27,475.62 and 5,169.66 is: 7,752.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.82 : 27,475.62 = 5,169.66 : x
  2. Step 2: Convert to fraction form
    18,320.82/27,475.62 = 5,169.66/x
  3. Step 3: Cross multiply
    18,320.82x = 27,475.62 × 5,169.66
  4. Step 4: Simplify right side
    18,320.82x = 142,039,613.69
  5. Step 5: Solve for x
    x = 142,039,613.69/18,320.82
  6. Step 6: Final answer
    x = 7,752.91

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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.