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Finding the Fourth Proportional to 11,489.69, 17,234.54 and 3,281.69

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Solution

The fourth proportional to 11,489.69, 17,234.54 and 3,281.69 is: 4,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,489.69 : 17,234.54 = 3,281.69 : x
  2. Step 2: Convert to fraction form
    11,489.69/17,234.54 = 3,281.69/x
  3. Step 3: Cross multiply
    11,489.69x = 17,234.54 × 3,281.69
  4. Step 4: Simplify right side
    11,489.69x = 56,558,401.16
  5. Step 5: Solve for x
    x = 56,558,401.16/11,489.69
  6. Step 6: Final answer
    x = 4,922.54

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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.