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Finding the Fourth Proportional to 12,550.28, 18,834.03 and 4,342.28

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Solution

The fourth proportional to 12,550.28, 18,834.03 and 4,342.28 is: 6,516.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.28 : 18,834.03 = 4,342.28 : x
  2. Step 2: Convert to fraction form
    12,550.28/18,834.03 = 4,342.28/x
  3. Step 3: Cross multiply
    12,550.28x = 18,834.03 × 4,342.28
  4. Step 4: Simplify right side
    12,550.28x = 81,782,631.79
  5. Step 5: Solve for x
    x = 81,782,631.79/12,550.28
  6. Step 6: Final answer
    x = 6,516.40

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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.