Home / 8,113.62-12,170.40-2,270.22

Finding the Fourth Proportional to 8,113.62, 12,170.40 and 2,270.22

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Solution

The fourth proportional to 8,113.62, 12,170.40 and 2,270.22 is: 3,405.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.62 : 12,170.40 = 2,270.22 : x
  2. Step 2: Convert to fraction form
    8,113.62/12,170.40 = 2,270.22/x
  3. Step 3: Cross multiply
    8,113.62x = 12,170.40 × 2,270.22
  4. Step 4: Simplify right side
    8,113.62x = 27,629,485.49
  5. Step 5: Solve for x
    x = 27,629,485.49/8,113.62
  6. Step 6: Final answer
    x = 3,405.32

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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.