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Finding the Fourth Proportional to 18,037, 27,031.74 and 7,635.88

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Solution

The fourth proportional to 18,037, 27,031.74 and 7,635.88 is: 11,443.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,037 : 27,031.74 = 7,635.88 : x
  2. Step 2: Convert to fraction form
    18,037/27,031.74 = 7,635.88/x
  3. Step 3: Cross multiply
    18,037x = 27,031.74 × 7,635.88
  4. Step 4: Simplify right side
    18,037x = 206,411,122.83
  5. Step 5: Solve for x
    x = 206,411,122.83/18,037
  6. Step 6: Final answer
    x = 11,443.76

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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.