Home / 18,135.48-27,190.26-8,907.96

Finding the Fourth Proportional to 18,135.48, 27,190.26 and 8,907.96

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Solution

The fourth proportional to 18,135.48, 27,190.26 and 8,907.96 is: 13,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.48 : 27,190.26 = 8,907.96 : x
  2. Step 2: Convert to fraction form
    18,135.48/27,190.26 = 8,907.96/x
  3. Step 3: Cross multiply
    18,135.48x = 27,190.26 × 8,907.96
  4. Step 4: Simplify right side
    18,135.48x = 242,209,748.47
  5. Step 5: Solve for x
    x = 242,209,748.47/18,135.48
  6. Step 6: Final answer
    x = 13,355.57

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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.