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Finding the Fourth Proportional to 7,993.60, 11,990.12 and 2,446.72

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Solution

The fourth proportional to 7,993.60, 11,990.12 and 2,446.72 is: 3,669.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.60 : 11,990.12 = 2,446.72 : x
  2. Step 2: Convert to fraction form
    7,993.60/11,990.12 = 2,446.72/x
  3. Step 3: Cross multiply
    7,993.60x = 11,990.12 × 2,446.72
  4. Step 4: Simplify right side
    7,993.60x = 29,336,466.41
  5. Step 5: Solve for x
    x = 29,336,466.41/7,993.60
  6. Step 6: Final answer
    x = 3,669.99

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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.