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Finding the Fourth Proportional to 17,212.60, 25,818.90 and 7,996.60

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Solution

The fourth proportional to 17,212.60, 25,818.90 and 7,996.60 is: 11,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,212.60 : 25,818.90 = 7,996.60 : x
  2. Step 2: Convert to fraction form
    17,212.60/25,818.90 = 7,996.60/x
  3. Step 3: Cross multiply
    17,212.60x = 25,818.90 × 7,996.60
  4. Step 4: Simplify right side
    17,212.60x = 206,463,415.74
  5. Step 5: Solve for x
    x = 206,463,415.74/17,212.60
  6. Step 6: Final answer
    x = 11,994.90

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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.