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Finding the Fourth Proportional to 8,660.84, 12,992.02 and 6,349.60

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Solution

The fourth proportional to 8,660.84, 12,992.02 and 6,349.60 is: 9,524.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.84 : 12,992.02 = 6,349.60 : x
  2. Step 2: Convert to fraction form
    8,660.84/12,992.02 = 6,349.60/x
  3. Step 3: Cross multiply
    8,660.84x = 12,992.02 × 6,349.60
  4. Step 4: Simplify right side
    8,660.84x = 82,494,130.19
  5. Step 5: Solve for x
    x = 82,494,130.19/8,660.84
  6. Step 6: Final answer
    x = 9,524.96

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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.