Home / 8,372.26-12,558.39-3,178.14

Finding the Fourth Proportional to 8,372.26, 12,558.39 and 3,178.14

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Solution

The fourth proportional to 8,372.26, 12,558.39 and 3,178.14 is: 4,767.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.26 : 12,558.39 = 3,178.14 : x
  2. Step 2: Convert to fraction form
    8,372.26/12,558.39 = 3,178.14/x
  3. Step 3: Cross multiply
    8,372.26x = 12,558.39 × 3,178.14
  4. Step 4: Simplify right side
    8,372.26x = 39,912,321.59
  5. Step 5: Solve for x
    x = 39,912,321.59/8,372.26
  6. Step 6: Final answer
    x = 4,767.21

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Double scale
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Similar ratio
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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.