Home / 12,220.66-18,330.99-3,454.44

Finding the Fourth Proportional to 12,220.66, 18,330.99 and 3,454.44

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Solution

The fourth proportional to 12,220.66, 18,330.99 and 3,454.44 is: 5,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.66 : 18,330.99 = 3,454.44 : x
  2. Step 2: Convert to fraction form
    12,220.66/18,330.99 = 3,454.44/x
  3. Step 3: Cross multiply
    12,220.66x = 18,330.99 × 3,454.44
  4. Step 4: Simplify right side
    12,220.66x = 63,323,305.10
  5. Step 5: Solve for x
    x = 63,323,305.10/12,220.66
  6. Step 6: Final answer
    x = 5,181.66

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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.