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Finding the Fourth Proportional to 18,451.41, 27,655.44 and 8,569.86

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Solution

The fourth proportional to 18,451.41, 27,655.44 and 8,569.86 is: 12,844.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.41 : 27,655.44 = 8,569.86 : x
  2. Step 2: Convert to fraction form
    18,451.41/27,655.44 = 8,569.86/x
  3. Step 3: Cross multiply
    18,451.41x = 27,655.44 × 8,569.86
  4. Step 4: Simplify right side
    18,451.41x = 237,003,249.04
  5. Step 5: Solve for x
    x = 237,003,249.04/18,451.41
  6. Step 6: Final answer
    x = 12,844.72

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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.