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Finding the Fourth Proportional to 8,423.30, 12,634.90 and 2,500.64

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Solution

The fourth proportional to 8,423.30, 12,634.90 and 2,500.64 is: 3,750.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.30 : 12,634.90 = 2,500.64 : x
  2. Step 2: Convert to fraction form
    8,423.30/12,634.90 = 2,500.64/x
  3. Step 3: Cross multiply
    8,423.30x = 12,634.90 × 2,500.64
  4. Step 4: Simplify right side
    8,423.30x = 31,595,336.34
  5. Step 5: Solve for x
    x = 31,595,336.34/8,423.30
  6. Step 6: Final answer
    x = 3,750.95

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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.