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Finding the Fourth Proportional to 8,714.76, 12,027.39 and 5,177.97

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Solution

The fourth proportional to 8,714.76, 12,027.39 and 5,177.97 is: 7,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,714.76 : 12,027.39 = 5,177.97 : x
  2. Step 2: Convert to fraction form
    8,714.76/12,027.39 = 5,177.97/x
  3. Step 3: Cross multiply
    8,714.76x = 12,027.39 × 5,177.97
  4. Step 4: Simplify right side
    8,714.76x = 62,277,464.60
  5. Step 5: Solve for x
    x = 62,277,464.60/8,714.76
  6. Step 6: Final answer
    x = 7,146.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.