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Finding the Fourth Proportional to 18,131.00, 27,198.11 and 5,651.12

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Solution

The fourth proportional to 18,131.00, 27,198.11 and 5,651.12 is: 8,477.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.00 : 27,198.11 = 5,651.12 : x
  2. Step 2: Convert to fraction form
    18,131.00/27,198.11 = 5,651.12/x
  3. Step 3: Cross multiply
    18,131.00x = 27,198.11 × 5,651.12
  4. Step 4: Simplify right side
    18,131.00x = 153,699,865.51
  5. Step 5: Solve for x
    x = 153,699,865.51/18,131.00
  6. Step 6: Final answer
    x = 8,477.19

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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.