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Finding the Fourth Proportional to 18,560.68, 27,807.52 and 12,305.88

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Solution

The fourth proportional to 18,560.68, 27,807.52 and 12,305.88 is: 18,436.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.68 : 27,807.52 = 12,305.88 : x
  2. Step 2: Convert to fraction form
    18,560.68/27,807.52 = 12,305.88/x
  3. Step 3: Cross multiply
    18,560.68x = 27,807.52 × 12,305.88
  4. Step 4: Simplify right side
    18,560.68x = 342,196,004.22
  5. Step 5: Solve for x
    x = 342,196,004.22/18,560.68
  6. Step 6: Final answer
    x = 18,436.61

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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.