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Finding the Fourth Proportional to 18,133.98, 27,175.44 and 14,419.71

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Solution

The fourth proportional to 18,133.98, 27,175.44 and 14,419.71 is: 21,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133.98 : 27,175.44 = 14,419.71 : x
  2. Step 2: Convert to fraction form
    18,133.98/27,175.44 = 14,419.71/x
  3. Step 3: Cross multiply
    18,133.98x = 27,175.44 × 14,419.71
  4. Step 4: Simplify right side
    18,133.98x = 391,861,963.92
  5. Step 5: Solve for x
    x = 391,861,963.92/18,133.98
  6. Step 6: Final answer
    x = 21,609.26

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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.