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Finding the Fourth Proportional to 11,369.44, 15,687.08 and 6,401.44

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Solution

The fourth proportional to 11,369.44, 15,687.08 and 6,401.44 is: 8,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,369.44 : 15,687.08 = 6,401.44 : x
  2. Step 2: Convert to fraction form
    11,369.44/15,687.08 = 6,401.44/x
  3. Step 3: Cross multiply
    11,369.44x = 15,687.08 × 6,401.44
  4. Step 4: Simplify right side
    11,369.44x = 100,419,901.40
  5. Step 5: Solve for x
    x = 100,419,901.40/11,369.44
  6. Step 6: Final answer
    x = 8,832.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.