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Finding the Fourth Proportional to 11,230.34, 16,855.89 and 5,687.58

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Solution

The fourth proportional to 11,230.34, 16,855.89 and 5,687.58 is: 8,536.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,230.34 : 16,855.89 = 5,687.58 : x
  2. Step 2: Convert to fraction form
    11,230.34/16,855.89 = 5,687.58/x
  3. Step 3: Cross multiply
    11,230.34x = 16,855.89 × 5,687.58
  4. Step 4: Simplify right side
    11,230.34x = 95,869,194.41
  5. Step 5: Solve for x
    x = 95,869,194.41/11,230.34
  6. Step 6: Final answer
    x = 8,536.62

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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.