Home / 11,248.72-16,874.90-4,229.28

Finding the Fourth Proportional to 11,248.72, 16,874.90 and 4,229.28

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Solution

The fourth proportional to 11,248.72, 16,874.90 and 4,229.28 is: 6,344.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.72 : 16,874.90 = 4,229.28 : x
  2. Step 2: Convert to fraction form
    11,248.72/16,874.90 = 4,229.28/x
  3. Step 3: Cross multiply
    11,248.72x = 16,874.90 × 4,229.28
  4. Step 4: Simplify right side
    11,248.72x = 71,368,677.07
  5. Step 5: Solve for x
    x = 71,368,677.07/11,248.72
  6. Step 6: Final answer
    x = 6,344.60

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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.