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Finding the Fourth Proportional to 18,627.93, 27,941.49 and 8,761.74

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Solution

The fourth proportional to 18,627.93, 27,941.49 and 8,761.74 is: 13,142.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.93 : 27,941.49 = 8,761.74 : x
  2. Step 2: Convert to fraction form
    18,627.93/27,941.49 = 8,761.74/x
  3. Step 3: Cross multiply
    18,627.93x = 27,941.49 × 8,761.74
  4. Step 4: Simplify right side
    18,627.93x = 244,816,070.59
  5. Step 5: Solve for x
    x = 244,816,070.59/18,627.93
  6. Step 6: Final answer
    x = 13,142.42

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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.