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Finding the Fourth Proportional to 8,367.68, 12,554.26 and 3,439.64

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Solution

The fourth proportional to 8,367.68, 12,554.26 and 3,439.64 is: 5,160.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.68 : 12,554.26 = 3,439.64 : x
  2. Step 2: Convert to fraction form
    8,367.68/12,554.26 = 3,439.64/x
  3. Step 3: Cross multiply
    8,367.68x = 12,554.26 × 3,439.64
  4. Step 4: Simplify right side
    8,367.68x = 43,182,134.87
  5. Step 5: Solve for x
    x = 43,182,134.87/8,367.68
  6. Step 6: Final answer
    x = 5,160.59

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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.