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Finding the Fourth Proportional to 11,782.68, 17,629.86 and 7,104.60

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Solution

The fourth proportional to 11,782.68, 17,629.86 and 7,104.60 is: 10,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,782.68 : 17,629.86 = 7,104.60 : x
  2. Step 2: Convert to fraction form
    11,782.68/17,629.86 = 7,104.60/x
  3. Step 3: Cross multiply
    11,782.68x = 17,629.86 × 7,104.60
  4. Step 4: Simplify right side
    11,782.68x = 125,253,103.36
  5. Step 5: Solve for x
    x = 125,253,103.36/11,782.68
  6. Step 6: Final answer
    x = 10,630.27

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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.