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Finding the Fourth Proportional to 8,576.76, 12,854.88 and 4,418.76

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Solution

The fourth proportional to 8,576.76, 12,854.88 and 4,418.76 is: 6,622.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.76 : 12,854.88 = 4,418.76 : x
  2. Step 2: Convert to fraction form
    8,576.76/12,854.88 = 4,418.76/x
  3. Step 3: Cross multiply
    8,576.76x = 12,854.88 × 4,418.76
  4. Step 4: Simplify right side
    8,576.76x = 56,802,629.55
  5. Step 5: Solve for x
    x = 56,802,629.55/8,576.76
  6. Step 6: Final answer
    x = 6,622.85

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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.