Home / 8,128.71-12,193.04-3,063.84

Finding the Fourth Proportional to 8,128.71, 12,193.04 and 3,063.84

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Solution

The fourth proportional to 8,128.71, 12,193.04 and 3,063.84 is: 4,595.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.71 : 12,193.04 = 3,063.84 : x
  2. Step 2: Convert to fraction form
    8,128.71/12,193.04 = 3,063.84/x
  3. Step 3: Cross multiply
    8,128.71x = 12,193.04 × 3,063.84
  4. Step 4: Simplify right side
    8,128.71x = 37,357,523.67
  5. Step 5: Solve for x
    x = 37,357,523.67/8,128.71
  6. Step 6: Final answer
    x = 4,595.75

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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.