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Finding the Fourth Proportional to 11,662.35, 17,487.11 and 7,968.75

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Solution

The fourth proportional to 11,662.35, 17,487.11 and 7,968.75 is: 11,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,662.35 : 17,487.11 = 7,968.75 : x
  2. Step 2: Convert to fraction form
    11,662.35/17,487.11 = 7,968.75/x
  3. Step 3: Cross multiply
    11,662.35x = 17,487.11 × 7,968.75
  4. Step 4: Simplify right side
    11,662.35x = 139,350,367.97
  5. Step 5: Solve for x
    x = 139,350,367.97/11,662.35
  6. Step 6: Final answer
    x = 11,948.74

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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.