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Finding the Fourth Proportional to 8,447.94, 12,672.72 and 2,902.32

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Solution

The fourth proportional to 8,447.94, 12,672.72 and 2,902.32 is: 4,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.94 : 12,672.72 = 2,902.32 : x
  2. Step 2: Convert to fraction form
    8,447.94/12,672.72 = 2,902.32/x
  3. Step 3: Cross multiply
    8,447.94x = 12,672.72 × 2,902.32
  4. Step 4: Simplify right side
    8,447.94x = 36,780,288.71
  5. Step 5: Solve for x
    x = 36,780,288.71/8,447.94
  6. Step 6: Final answer
    x = 4,353.76

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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.