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Finding the Fourth Proportional to 8,348.64, 11,508.84 and 6,355.72

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Solution

The fourth proportional to 8,348.64, 11,508.84 and 6,355.72 is: 8,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.64 : 11,508.84 = 6,355.72 : x
  2. Step 2: Convert to fraction form
    8,348.64/11,508.84 = 6,355.72/x
  3. Step 3: Cross multiply
    8,348.64x = 11,508.84 × 6,355.72
  4. Step 4: Simplify right side
    8,348.64x = 73,146,964.56
  5. Step 5: Solve for x
    x = 73,146,964.56/8,348.64
  6. Step 6: Final answer
    x = 8,761.54

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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.