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Finding the Fourth Proportional to 18,156.62, 27,234.95 and 5,676.71

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Solution

The fourth proportional to 18,156.62, 27,234.95 and 5,676.71 is: 8,515.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.62 : 27,234.95 = 5,676.71 : x
  2. Step 2: Convert to fraction form
    18,156.62/27,234.95 = 5,676.71/x
  3. Step 3: Cross multiply
    18,156.62x = 27,234.95 × 5,676.71
  4. Step 4: Simplify right side
    18,156.62x = 154,604,748.46
  5. Step 5: Solve for x
    x = 154,604,748.46/18,156.62
  6. Step 6: Final answer
    x = 8,515.06

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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.