Home / 8,130.19-12,195.33-2,286.85

Finding the Fourth Proportional to 8,130.19, 12,195.33 and 2,286.85

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Solution

The fourth proportional to 8,130.19, 12,195.33 and 2,286.85 is: 3,430.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.19 : 12,195.33 = 2,286.85 : x
  2. Step 2: Convert to fraction form
    8,130.19/12,195.33 = 2,286.85/x
  3. Step 3: Cross multiply
    8,130.19x = 12,195.33 × 2,286.85
  4. Step 4: Simplify right side
    8,130.19x = 27,888,890.41
  5. Step 5: Solve for x
    x = 27,888,890.41/8,130.19
  6. Step 6: Final answer
    x = 3,430.29

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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.