Home / 18,519.88-27,786.32-5,373.04

Finding the Fourth Proportional to 18,519.88, 27,786.32 and 5,373.04

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Solution

The fourth proportional to 18,519.88, 27,786.32 and 5,373.04 is: 8,061.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.88 : 27,786.32 = 5,373.04 : x
  2. Step 2: Convert to fraction form
    18,519.88/27,786.32 = 5,373.04/x
  3. Step 3: Cross multiply
    18,519.88x = 27,786.32 × 5,373.04
  4. Step 4: Simplify right side
    18,519.88x = 149,297,008.81
  5. Step 5: Solve for x
    x = 149,297,008.81/18,519.88
  6. Step 6: Final answer
    x = 8,061.45

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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.