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Finding the Fourth Proportional to 14,494.80, 21,659.52 and 12,162

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Solution

The fourth proportional to 14,494.80, 21,659.52 and 12,162 is: 18,173.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,494.80 : 21,659.52 = 12,162 : x
  2. Step 2: Convert to fraction form
    14,494.80/21,659.52 = 12,162/x
  3. Step 3: Cross multiply
    14,494.80x = 21,659.52 × 12,162
  4. Step 4: Simplify right side
    14,494.80x = 263,423,082.24
  5. Step 5: Solve for x
    x = 263,423,082.24/14,494.80
  6. Step 6: Final answer
    x = 18,173.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.