Home / 18,279.41-27,396.99-8,905.37

Finding the Fourth Proportional to 18,279.41, 27,396.99 and 8,905.37

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Solution

The fourth proportional to 18,279.41, 27,396.99 and 8,905.37 is: 13,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.41 : 27,396.99 = 8,905.37 : x
  2. Step 2: Convert to fraction form
    18,279.41/27,396.99 = 8,905.37/x
  3. Step 3: Cross multiply
    18,279.41x = 27,396.99 × 8,905.37
  4. Step 4: Simplify right side
    18,279.41x = 243,980,195.85
  5. Step 5: Solve for x
    x = 243,980,195.85/18,279.41
  6. Step 6: Final answer
    x = 13,347.27

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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.