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Finding the Fourth Proportional to 11,605.43, 16,014.78 and 6,826.22

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Solution

The fourth proportional to 11,605.43, 16,014.78 and 6,826.22 is: 9,419.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,605.43 : 16,014.78 = 6,826.22 : x
  2. Step 2: Convert to fraction form
    11,605.43/16,014.78 = 6,826.22/x
  3. Step 3: Cross multiply
    11,605.43x = 16,014.78 × 6,826.22
  4. Step 4: Simplify right side
    11,605.43x = 109,320,481.60
  5. Step 5: Solve for x
    x = 109,320,481.60/11,605.43
  6. Step 6: Final answer
    x = 9,419.77

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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.