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Finding the Fourth Proportional to 16,900.39, 25,350 and 5,213.32

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Solution

The fourth proportional to 16,900.39, 25,350 and 5,213.32 is: 7,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,900.39 : 25,350 = 5,213.32 : x
  2. Step 2: Convert to fraction form
    16,900.39/25,350 = 5,213.32/x
  3. Step 3: Cross multiply
    16,900.39x = 25,350 × 5,213.32
  4. Step 4: Simplify right side
    16,900.39x = 132,157,662
  5. Step 5: Solve for x
    x = 132,157,662/16,900.39
  6. Step 6: Final answer
    x = 7,819.80

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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.