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Finding the Fourth Proportional to 8,164.58, 12,247.89 and 2,321.65

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Solution

The fourth proportional to 8,164.58, 12,247.89 and 2,321.65 is: 3,482.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,164.58 : 12,247.89 = 2,321.65 : x
  2. Step 2: Convert to fraction form
    8,164.58/12,247.89 = 2,321.65/x
  3. Step 3: Cross multiply
    8,164.58x = 12,247.89 × 2,321.65
  4. Step 4: Simplify right side
    8,164.58x = 28,435,274.49
  5. Step 5: Solve for x
    x = 28,435,274.49/8,164.58
  6. Step 6: Final answer
    x = 3,482.76

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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.