Home / 18,668.18-27,998.10-11,262.47

Finding the Fourth Proportional to 18,668.18, 27,998.10 and 11,262.47

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Solution

The fourth proportional to 18,668.18, 27,998.10 and 11,262.47 is: 16,891.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.18 : 27,998.10 = 11,262.47 : x
  2. Step 2: Convert to fraction form
    18,668.18/27,998.10 = 11,262.47/x
  3. Step 3: Cross multiply
    18,668.18x = 27,998.10 × 11,262.47
  4. Step 4: Simplify right side
    18,668.18x = 315,327,621.32
  5. Step 5: Solve for x
    x = 315,327,621.32/18,668.18
  6. Step 6: Final answer
    x = 16,891.19

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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.