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Finding the Fourth Proportional to 11,803.20, 17,704.80 and 11,297.60

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Solution

The fourth proportional to 11,803.20, 17,704.80 and 11,297.60 is: 16,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,803.20 : 17,704.80 = 11,297.60 : x
  2. Step 2: Convert to fraction form
    11,803.20/17,704.80 = 11,297.60/x
  3. Step 3: Cross multiply
    11,803.20x = 17,704.80 × 11,297.60
  4. Step 4: Simplify right side
    11,803.20x = 200,021,748.48
  5. Step 5: Solve for x
    x = 200,021,748.48/11,803.20
  6. Step 6: Final answer
    x = 16,946.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.