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Finding the Fourth Proportional to 11,804.40, 17,706.60 and 3,906.90

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Solution

The fourth proportional to 11,804.40, 17,706.60 and 3,906.90 is: 5,860.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,804.40 : 17,706.60 = 3,906.90 : x
  2. Step 2: Convert to fraction form
    11,804.40/17,706.60 = 3,906.90/x
  3. Step 3: Cross multiply
    11,804.40x = 17,706.60 × 3,906.90
  4. Step 4: Simplify right side
    11,804.40x = 69,177,915.54
  5. Step 5: Solve for x
    x = 69,177,915.54/11,804.40
  6. Step 6: Final answer
    x = 5,860.35

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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.