Home / 8,383.96-12,576.06-3,190.12

Finding the Fourth Proportional to 8,383.96, 12,576.06 and 3,190.12

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Solution

The fourth proportional to 8,383.96, 12,576.06 and 3,190.12 is: 4,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,383.96 : 12,576.06 = 3,190.12 : x
  2. Step 2: Convert to fraction form
    8,383.96/12,576.06 = 3,190.12/x
  3. Step 3: Cross multiply
    8,383.96x = 12,576.06 × 3,190.12
  4. Step 4: Simplify right side
    8,383.96x = 40,119,140.53
  5. Step 5: Solve for x
    x = 40,119,140.53/8,383.96
  6. Step 6: Final answer
    x = 4,785.23

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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.