Home / 18,393.42-27,589.99-12,181.24

Finding the Fourth Proportional to 18,393.42, 27,589.99 and 12,181.24

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Solution

The fourth proportional to 18,393.42, 27,589.99 and 12,181.24 is: 18,271.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.42 : 27,589.99 = 12,181.24 : x
  2. Step 2: Convert to fraction form
    18,393.42/27,589.99 = 12,181.24/x
  3. Step 3: Cross multiply
    18,393.42x = 27,589.99 × 12,181.24
  4. Step 4: Simplify right side
    18,393.42x = 336,080,090.93
  5. Step 5: Solve for x
    x = 336,080,090.93/18,393.42
  6. Step 6: Final answer
    x = 18,271.76

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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.