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Finding the Fourth Proportional to 7,994.08, 11,994.58 and 4,291.99

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Solution

The fourth proportional to 7,994.08, 11,994.58 and 4,291.99 is: 6,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.08 : 11,994.58 = 4,291.99 : x
  2. Step 2: Convert to fraction form
    7,994.08/11,994.58 = 4,291.99/x
  3. Step 3: Cross multiply
    7,994.08x = 11,994.58 × 4,291.99
  4. Step 4: Simplify right side
    7,994.08x = 51,480,568.65
  5. Step 5: Solve for x
    x = 51,480,568.65/7,994.08
  6. Step 6: Final answer
    x = 6,439.84

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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.