Home / 8,115.18-11,197.83-4,577.70

Finding the Fourth Proportional to 8,115.18, 11,197.83 and 4,577.70

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Solution

The fourth proportional to 8,115.18, 11,197.83 and 4,577.70 is: 6,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.18 : 11,197.83 = 4,577.70 : x
  2. Step 2: Convert to fraction form
    8,115.18/11,197.83 = 4,577.70/x
  3. Step 3: Cross multiply
    8,115.18x = 11,197.83 × 4,577.70
  4. Step 4: Simplify right side
    8,115.18x = 51,260,306.39
  5. Step 5: Solve for x
    x = 51,260,306.39/8,115.18
  6. Step 6: Final answer
    x = 6,316.60

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Half scale
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Find fourth proportional to 8,116.18, 11,199.21 and 4,578.70
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.