Home / 18,069.19-27,098.31-4,919.85

Finding the Fourth Proportional to 18,069.19, 27,098.31 and 4,919.85

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Solution

The fourth proportional to 18,069.19, 27,098.31 and 4,919.85 is: 7,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,069.19 : 27,098.31 = 4,919.85 : x
  2. Step 2: Convert to fraction form
    18,069.19/27,098.31 = 4,919.85/x
  3. Step 3: Cross multiply
    18,069.19x = 27,098.31 × 4,919.85
  4. Step 4: Simplify right side
    18,069.19x = 133,319,620.45
  5. Step 5: Solve for x
    x = 133,319,620.45/18,069.19
  6. Step 6: Final answer
    x = 7,378.28

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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.