Home / 18,305.79-27,467.88-7,220.43

Finding the Fourth Proportional to 18,305.79, 27,467.88 and 7,220.43

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Solution

The fourth proportional to 18,305.79, 27,467.88 and 7,220.43 is: 10,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.79 : 27,467.88 = 7,220.43 : x
  2. Step 2: Convert to fraction form
    18,305.79/27,467.88 = 7,220.43/x
  3. Step 3: Cross multiply
    18,305.79x = 27,467.88 × 7,220.43
  4. Step 4: Simplify right side
    18,305.79x = 198,329,904.79
  5. Step 5: Solve for x
    x = 198,329,904.79/18,305.79
  6. Step 6: Final answer
    x = 10,834.27

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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.