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Finding the Fourth Proportional to 8,514.54, 12,774 and 2,671.20

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Solution

The fourth proportional to 8,514.54, 12,774 and 2,671.20 is: 4,007.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,514.54 : 12,774 = 2,671.20 : x
  2. Step 2: Convert to fraction form
    8,514.54/12,774 = 2,671.20/x
  3. Step 3: Cross multiply
    8,514.54x = 12,774 × 2,671.20
  4. Step 4: Simplify right side
    8,514.54x = 34,121,908.80
  5. Step 5: Solve for x
    x = 34,121,908.80/8,514.54
  6. Step 6: Final answer
    x = 4,007.49

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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.