Home / 18,134.88-27,170.09-7,581.66

Finding the Fourth Proportional to 18,134.88, 27,170.09 and 7,581.66

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Solution

The fourth proportional to 18,134.88, 27,170.09 and 7,581.66 is: 11,359.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.88 : 27,170.09 = 7,581.66 : x
  2. Step 2: Convert to fraction form
    18,134.88/27,170.09 = 7,581.66/x
  3. Step 3: Cross multiply
    18,134.88x = 27,170.09 × 7,581.66
  4. Step 4: Simplify right side
    18,134.88x = 205,994,346.64
  5. Step 5: Solve for x
    x = 205,994,346.64/18,134.88
  6. Step 6: Final answer
    x = 11,359.01

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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.