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Finding the Fourth Proportional to 18,473.46, 27,690.84 and 8,604.60

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Solution

The fourth proportional to 18,473.46, 27,690.84 and 8,604.60 is: 12,897.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.46 : 27,690.84 = 8,604.60 : x
  2. Step 2: Convert to fraction form
    18,473.46/27,690.84 = 8,604.60/x
  3. Step 3: Cross multiply
    18,473.46x = 27,690.84 × 8,604.60
  4. Step 4: Simplify right side
    18,473.46x = 238,268,601.86
  5. Step 5: Solve for x
    x = 238,268,601.86/18,473.46
  6. Step 6: Final answer
    x = 12,897.89

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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.