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Finding the Fourth Proportional to 11,213.60, 16,795.92 and 9,243.68

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Solution

The fourth proportional to 11,213.60, 16,795.92 and 9,243.68 is: 13,845.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.60 : 16,795.92 = 9,243.68 : x
  2. Step 2: Convert to fraction form
    11,213.60/16,795.92 = 9,243.68/x
  3. Step 3: Cross multiply
    11,213.60x = 16,795.92 × 9,243.68
  4. Step 4: Simplify right side
    11,213.60x = 155,256,109.79
  5. Step 5: Solve for x
    x = 155,256,109.79/11,213.60
  6. Step 6: Final answer
    x = 13,845.34

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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.