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Finding the Fourth Proportional to 8,423.92, 12,635.92 and 2,268.08

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Solution

The fourth proportional to 8,423.92, 12,635.92 and 2,268.08 is: 3,402.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.92 : 12,635.92 = 2,268.08 : x
  2. Step 2: Convert to fraction form
    8,423.92/12,635.92 = 2,268.08/x
  3. Step 3: Cross multiply
    8,423.92x = 12,635.92 × 2,268.08
  4. Step 4: Simplify right side
    8,423.92x = 28,659,277.43
  5. Step 5: Solve for x
    x = 28,659,277.43/8,423.92
  6. Step 6: Final answer
    x = 3,402.13

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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.