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Finding the Fourth Proportional to 14,453.62, 21,680.09 and 6,662.43

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Solution

The fourth proportional to 14,453.62, 21,680.09 and 6,662.43 is: 9,993.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,453.62 : 21,680.09 = 6,662.43 : x
  2. Step 2: Convert to fraction form
    14,453.62/21,680.09 = 6,662.43/x
  3. Step 3: Cross multiply
    14,453.62x = 21,680.09 × 6,662.43
  4. Step 4: Simplify right side
    14,453.62x = 144,442,073.69
  5. Step 5: Solve for x
    x = 144,442,073.69/14,453.62
  6. Step 6: Final answer
    x = 9,993.49

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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.