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Finding the Fourth Proportional to 18,619.99, 27,884.41 and 12,026.18

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Solution

The fourth proportional to 18,619.99, 27,884.41 and 12,026.18 is: 18,009.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.99 : 27,884.41 = 12,026.18 : x
  2. Step 2: Convert to fraction form
    18,619.99/27,884.41 = 12,026.18/x
  3. Step 3: Cross multiply
    18,619.99x = 27,884.41 × 12,026.18
  4. Step 4: Simplify right side
    18,619.99x = 335,342,933.85
  5. Step 5: Solve for x
    x = 335,342,933.85/18,619.99
  6. Step 6: Final answer
    x = 18,009.83

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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.