Home / 11,427.60-17,122.20-5,571.60

Finding the Fourth Proportional to 11,427.60, 17,122.20 and 5,571.60

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Solution

The fourth proportional to 11,427.60, 17,122.20 and 5,571.60 is: 8,348.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.60 : 17,122.20 = 5,571.60 : x
  2. Step 2: Convert to fraction form
    11,427.60/17,122.20 = 5,571.60/x
  3. Step 3: Cross multiply
    11,427.60x = 17,122.20 × 5,571.60
  4. Step 4: Simplify right side
    11,427.60x = 95,398,049.52
  5. Step 5: Solve for x
    x = 95,398,049.52/11,427.60
  6. Step 6: Final answer
    x = 8,348.04

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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.