Home / 11,274.78-16,915.14-4,254.90

Finding the Fourth Proportional to 11,274.78, 16,915.14 and 4,254.90

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Solution

The fourth proportional to 11,274.78, 16,915.14 and 4,254.90 is: 6,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.78 : 16,915.14 = 4,254.90 : x
  2. Step 2: Convert to fraction form
    11,274.78/16,915.14 = 4,254.90/x
  3. Step 3: Cross multiply
    11,274.78x = 16,915.14 × 4,254.90
  4. Step 4: Simplify right side
    11,274.78x = 71,972,229.19
  5. Step 5: Solve for x
    x = 71,972,229.19/11,274.78
  6. Step 6: Final answer
    x = 6,383.47

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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.