Home / 18,118.56-27,229.68-8,891.04

Finding the Fourth Proportional to 18,118.56, 27,229.68 and 8,891.04

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Solution

The fourth proportional to 18,118.56, 27,229.68 and 8,891.04 is: 13,362.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.56 : 27,229.68 = 8,891.04 : x
  2. Step 2: Convert to fraction form
    18,118.56/27,229.68 = 8,891.04/x
  3. Step 3: Cross multiply
    18,118.56x = 27,229.68 × 8,891.04
  4. Step 4: Simplify right side
    18,118.56x = 242,100,174.07
  5. Step 5: Solve for x
    x = 242,100,174.07/18,118.56
  6. Step 6: Final answer
    x = 13,362.00

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1.5x scale

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.