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Finding the Fourth Proportional to 11,120.53, 16,686.53 and 4,884.91

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Solution

The fourth proportional to 11,120.53, 16,686.53 and 4,884.91 is: 7,329.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.53 : 16,686.53 = 4,884.91 : x
  2. Step 2: Convert to fraction form
    11,120.53/16,686.53 = 4,884.91/x
  3. Step 3: Cross multiply
    11,120.53x = 16,686.53 × 4,884.91
  4. Step 4: Simplify right side
    11,120.53x = 81,512,197.26
  5. Step 5: Solve for x
    x = 81,512,197.26/11,120.53
  6. Step 6: Final answer
    x = 7,329.88

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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.