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Finding the Fourth Proportional to 18,249.66, 27,405.66 and 10,899.72

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Solution

The fourth proportional to 18,249.66, 27,405.66 and 10,899.72 is: 16,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.66 : 27,405.66 = 10,899.72 : x
  2. Step 2: Convert to fraction form
    18,249.66/27,405.66 = 10,899.72/x
  3. Step 3: Cross multiply
    18,249.66x = 27,405.66 × 10,899.72
  4. Step 4: Simplify right side
    18,249.66x = 298,714,020.42
  5. Step 5: Solve for x
    x = 298,714,020.42/18,249.66
  6. Step 6: Final answer
    x = 16,368.20

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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.