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Finding the Fourth Proportional to 18,399.63, 27,599.69 and 8,010.99

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Solution

The fourth proportional to 18,399.63, 27,599.69 and 8,010.99 is: 12,016.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.63 : 27,599.69 = 8,010.99 : x
  2. Step 2: Convert to fraction form
    18,399.63/27,599.69 = 8,010.99/x
  3. Step 3: Cross multiply
    18,399.63x = 27,599.69 × 8,010.99
  4. Step 4: Simplify right side
    18,399.63x = 221,100,800.54
  5. Step 5: Solve for x
    x = 221,100,800.54/18,399.63
  6. Step 6: Final answer
    x = 12,016.59

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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.