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Finding the Fourth Proportional to 18,086.63, 27,137.69 and 9,327.69

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Solution

The fourth proportional to 18,086.63, 27,137.69 and 9,327.69 is: 13,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.63 : 27,137.69 = 9,327.69 : x
  2. Step 2: Convert to fraction form
    18,086.63/27,137.69 = 9,327.69/x
  3. Step 3: Cross multiply
    18,086.63x = 27,137.69 × 9,327.69
  4. Step 4: Simplify right side
    18,086.63x = 253,131,947.98
  5. Step 5: Solve for x
    x = 253,131,947.98/18,086.63
  6. Step 6: Final answer
    x = 13,995.53

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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.