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Finding the Fourth Proportional to 16,143.26, 24,121.42 and 12,374.42

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Solution

The fourth proportional to 16,143.26, 24,121.42 and 12,374.42 is: 18,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,143.26 : 24,121.42 = 12,374.42 : x
  2. Step 2: Convert to fraction form
    16,143.26/24,121.42 = 12,374.42/x
  3. Step 3: Cross multiply
    16,143.26x = 24,121.42 × 12,374.42
  4. Step 4: Simplify right side
    16,143.26x = 298,488,582.08
  5. Step 5: Solve for x
    x = 298,488,582.08/16,143.26
  6. Step 6: Final answer
    x = 18,489.98

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1.5x scale

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.