Home / 18,115.07-27,166.99-8,749.27

Finding the Fourth Proportional to 18,115.07, 27,166.99 and 8,749.27

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Solution

The fourth proportional to 18,115.07, 27,166.99 and 8,749.27 is: 13,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.07 : 27,166.99 = 8,749.27 : x
  2. Step 2: Convert to fraction form
    18,115.07/27,166.99 = 8,749.27/x
  3. Step 3: Cross multiply
    18,115.07x = 27,166.99 × 8,749.27
  4. Step 4: Simplify right side
    18,115.07x = 237,691,330.60
  5. Step 5: Solve for x
    x = 237,691,330.60/18,115.07
  6. Step 6: Final answer
    x = 13,121.19

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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.