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Finding the Fourth Proportional to 8,958.54, 12,375.84 and 6,613.62

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Solution

The fourth proportional to 8,958.54, 12,375.84 and 6,613.62 is: 9,136.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.54 : 12,375.84 = 6,613.62 : x
  2. Step 2: Convert to fraction form
    8,958.54/12,375.84 = 6,613.62/x
  3. Step 3: Cross multiply
    8,958.54x = 12,375.84 × 6,613.62
  4. Step 4: Simplify right side
    8,958.54x = 81,849,102.94
  5. Step 5: Solve for x
    x = 81,849,102.94/8,958.54
  6. Step 6: Final answer
    x = 9,136.43

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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.