Home / 8,123.34-12,185.01-2,279.94

Finding the Fourth Proportional to 8,123.34, 12,185.01 and 2,279.94

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Solution

The fourth proportional to 8,123.34, 12,185.01 and 2,279.94 is: 3,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.34 : 12,185.01 = 2,279.94 : x
  2. Step 2: Convert to fraction form
    8,123.34/12,185.01 = 2,279.94/x
  3. Step 3: Cross multiply
    8,123.34x = 12,185.01 × 2,279.94
  4. Step 4: Simplify right side
    8,123.34x = 27,781,091.70
  5. Step 5: Solve for x
    x = 27,781,091.70/8,123.34
  6. Step 6: Final answer
    x = 3,419.91

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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.