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Finding the Fourth Proportional to 11,337.75, 17,007.59 and 3,129.75

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Solution

The fourth proportional to 11,337.75, 17,007.59 and 3,129.75 is: 4,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,337.75 : 17,007.59 = 3,129.75 : x
  2. Step 2: Convert to fraction form
    11,337.75/17,007.59 = 3,129.75/x
  3. Step 3: Cross multiply
    11,337.75x = 17,007.59 × 3,129.75
  4. Step 4: Simplify right side
    11,337.75x = 53,229,489.15
  5. Step 5: Solve for x
    x = 53,229,489.15/11,337.75
  6. Step 6: Final answer
    x = 4,694.89

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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.