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Finding the Fourth Proportional to 18,019.88, 27,043.74 and 9,262.44

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Solution

The fourth proportional to 18,019.88, 27,043.74 and 9,262.44 is: 13,900.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.88 : 27,043.74 = 9,262.44 : x
  2. Step 2: Convert to fraction form
    18,019.88/27,043.74 = 9,262.44/x
  3. Step 3: Cross multiply
    18,019.88x = 27,043.74 × 9,262.44
  4. Step 4: Simplify right side
    18,019.88x = 250,491,019.13
  5. Step 5: Solve for x
    x = 250,491,019.13/18,019.88
  6. Step 6: Final answer
    x = 13,900.82

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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.