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Finding the Fourth Proportional to 11,481.60, 17,223.60 and 3,688.56

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Solution

The fourth proportional to 11,481.60, 17,223.60 and 3,688.56 is: 5,533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.60 : 17,223.60 = 3,688.56 : x
  2. Step 2: Convert to fraction form
    11,481.60/17,223.60 = 3,688.56/x
  3. Step 3: Cross multiply
    11,481.60x = 17,223.60 × 3,688.56
  4. Step 4: Simplify right side
    11,481.60x = 63,530,282.02
  5. Step 5: Solve for x
    x = 63,530,282.02/11,481.60
  6. Step 6: Final answer
    x = 5,533.23

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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.