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Finding the Fourth Proportional to 11,405.03, 17,103.17 and 5,480.27

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Solution

The fourth proportional to 11,405.03, 17,103.17 and 5,480.27 is: 8,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.03 : 17,103.17 = 5,480.27 : x
  2. Step 2: Convert to fraction form
    11,405.03/17,103.17 = 5,480.27/x
  3. Step 3: Cross multiply
    11,405.03x = 17,103.17 × 5,480.27
  4. Step 4: Simplify right side
    11,405.03x = 93,729,876.54
  5. Step 5: Solve for x
    x = 93,729,876.54/11,405.03
  6. Step 6: Final answer
    x = 8,218.30

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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.