Home / 18,255.12-27,382.68-7,167.03

Finding the Fourth Proportional to 18,255.12, 27,382.68 and 7,167.03

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Solution

The fourth proportional to 18,255.12, 27,382.68 and 7,167.03 is: 10,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.12 : 27,382.68 = 7,167.03 : x
  2. Step 2: Convert to fraction form
    18,255.12/27,382.68 = 7,167.03/x
  3. Step 3: Cross multiply
    18,255.12x = 27,382.68 × 7,167.03
  4. Step 4: Simplify right side
    18,255.12x = 196,252,316.29
  5. Step 5: Solve for x
    x = 196,252,316.29/18,255.12
  6. Step 6: Final answer
    x = 10,750.54

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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.