Home / 8,123.49-12,185.24-3,193.63

Finding the Fourth Proportional to 8,123.49, 12,185.24 and 3,193.63

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Solution

The fourth proportional to 8,123.49, 12,185.24 and 3,193.63 is: 4,790.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.49 : 12,185.24 = 3,193.63 : x
  2. Step 2: Convert to fraction form
    8,123.49/12,185.24 = 3,193.63/x
  3. Step 3: Cross multiply
    8,123.49x = 12,185.24 × 3,193.63
  4. Step 4: Simplify right side
    8,123.49x = 38,915,101.59
  5. Step 5: Solve for x
    x = 38,915,101.59/8,123.49
  6. Step 6: Final answer
    x = 4,790.44

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Half scale
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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.