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Finding the Fourth Proportional to 8,491.43, 11,714.96 and 6,258.65

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Solution

The fourth proportional to 8,491.43, 11,714.96 and 6,258.65 is: 8,634.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.43 : 11,714.96 = 6,258.65 : x
  2. Step 2: Convert to fraction form
    8,491.43/11,714.96 = 6,258.65/x
  3. Step 3: Cross multiply
    8,491.43x = 11,714.96 × 6,258.65
  4. Step 4: Simplify right side
    8,491.43x = 73,319,791.48
  5. Step 5: Solve for x
    x = 73,319,791.48/8,491.43
  6. Step 6: Final answer
    x = 8,634.56

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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.