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Finding the Fourth Proportional to 8,318.96, 12,468.05 and 4,160.15

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Solution

The fourth proportional to 8,318.96, 12,468.05 and 4,160.15 is: 6,235.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.96 : 12,468.05 = 4,160.15 : x
  2. Step 2: Convert to fraction form
    8,318.96/12,468.05 = 4,160.15/x
  3. Step 3: Cross multiply
    8,318.96x = 12,468.05 × 4,160.15
  4. Step 4: Simplify right side
    8,318.96x = 51,868,958.21
  5. Step 5: Solve for x
    x = 51,868,958.21/8,318.96
  6. Step 6: Final answer
    x = 6,235.03

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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.