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Finding the Fourth Proportional to 8,508.64, 12,770.86 and 4,351.62

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Solution

The fourth proportional to 8,508.64, 12,770.86 and 4,351.62 is: 6,531.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.64 : 12,770.86 = 4,351.62 : x
  2. Step 2: Convert to fraction form
    8,508.64/12,770.86 = 4,351.62/x
  3. Step 3: Cross multiply
    8,508.64x = 12,770.86 × 4,351.62
  4. Step 4: Simplify right side
    8,508.64x = 55,573,908.04
  5. Step 5: Solve for x
    x = 55,573,908.04/8,508.64
  6. Step 6: Final answer
    x = 6,531.47

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1.5x scale

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.