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Finding the Fourth Proportional to 11,994.01, 17,996.21 and 6,440.87

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Solution

The fourth proportional to 11,994.01, 17,996.21 and 6,440.87 is: 9,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.01 : 17,996.21 = 6,440.87 : x
  2. Step 2: Convert to fraction form
    11,994.01/17,996.21 = 6,440.87/x
  3. Step 3: Cross multiply
    11,994.01x = 17,996.21 × 6,440.87
  4. Step 4: Simplify right side
    11,994.01x = 115,911,249.10
  5. Step 5: Solve for x
    x = 115,911,249.10/11,994.01
  6. Step 6: Final answer
    x = 9,664.09

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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.