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Finding the Fourth Proportional to 11,434.54, 17,153.43 and 3,640.74

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Solution

The fourth proportional to 11,434.54, 17,153.43 and 3,640.74 is: 5,461.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.54 : 17,153.43 = 3,640.74 : x
  2. Step 2: Convert to fraction form
    11,434.54/17,153.43 = 3,640.74/x
  3. Step 3: Cross multiply
    11,434.54x = 17,153.43 × 3,640.74
  4. Step 4: Simplify right side
    11,434.54x = 62,451,178.74
  5. Step 5: Solve for x
    x = 62,451,178.74/11,434.54
  6. Step 6: Final answer
    x = 5,461.63

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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.