Home / 18,327.94-27,491.91-5,179.21

Finding the Fourth Proportional to 18,327.94, 27,491.91 and 5,179.21

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Solution

The fourth proportional to 18,327.94, 27,491.91 and 5,179.21 is: 7,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.94 : 27,491.91 = 5,179.21 : x
  2. Step 2: Convert to fraction form
    18,327.94/27,491.91 = 5,179.21/x
  3. Step 3: Cross multiply
    18,327.94x = 27,491.91 × 5,179.21
  4. Step 4: Simplify right side
    18,327.94x = 142,386,375.19
  5. Step 5: Solve for x
    x = 142,386,375.19/18,327.94
  6. Step 6: Final answer
    x = 7,768.82

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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.