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Finding the Fourth Proportional to 11,336.75, 17,006.11 and 3,128.75

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Solution

The fourth proportional to 11,336.75, 17,006.11 and 3,128.75 is: 4,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336.75 : 17,006.11 = 3,128.75 : x
  2. Step 2: Convert to fraction form
    11,336.75/17,006.11 = 3,128.75/x
  3. Step 3: Cross multiply
    11,336.75x = 17,006.11 × 3,128.75
  4. Step 4: Simplify right side
    11,336.75x = 53,207,866.66
  5. Step 5: Solve for x
    x = 53,207,866.66/11,336.75
  6. Step 6: Final answer
    x = 4,693.40

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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.