Home / 11,943.45-16,481.62-6,638.13

Finding the Fourth Proportional to 11,943.45, 16,481.62 and 6,638.13

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Solution

The fourth proportional to 11,943.45, 16,481.62 and 6,638.13 is: 9,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.45 : 16,481.62 = 6,638.13 : x
  2. Step 2: Convert to fraction form
    11,943.45/16,481.62 = 6,638.13/x
  3. Step 3: Cross multiply
    11,943.45x = 16,481.62 × 6,638.13
  4. Step 4: Simplify right side
    11,943.45x = 109,407,136.17
  5. Step 5: Solve for x
    x = 109,407,136.17/11,943.45
  6. Step 6: Final answer
    x = 9,160.43

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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.