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Finding the Fourth Proportional to 16,783.40, 25,175.10 and 11,253.80

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Solution

The fourth proportional to 16,783.40, 25,175.10 and 11,253.80 is: 16,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,783.40 : 25,175.10 = 11,253.80 : x
  2. Step 2: Convert to fraction form
    16,783.40/25,175.10 = 11,253.80/x
  3. Step 3: Cross multiply
    16,783.40x = 25,175.10 × 11,253.80
  4. Step 4: Simplify right side
    16,783.40x = 283,315,540.38
  5. Step 5: Solve for x
    x = 283,315,540.38/16,783.40
  6. Step 6: Final answer
    x = 16,880.70

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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.