Home / 18,249.84-27,369-11,581.68

Finding the Fourth Proportional to 18,249.84, 27,369 and 11,581.68

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Solution

The fourth proportional to 18,249.84, 27,369 and 11,581.68 is: 17,368.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.84 : 27,369 = 11,581.68 : x
  2. Step 2: Convert to fraction form
    18,249.84/27,369 = 11,581.68/x
  3. Step 3: Cross multiply
    18,249.84x = 27,369 × 11,581.68
  4. Step 4: Simplify right side
    18,249.84x = 316,978,999.92
  5. Step 5: Solve for x
    x = 316,978,999.92/18,249.84
  6. Step 6: Final answer
    x = 17,368.86

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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.