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Finding the Fourth Proportional to 6,453.39, 8,908.11 and 5,553.82

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Solution

The fourth proportional to 6,453.39, 8,908.11 and 5,553.82 is: 7,666.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.39 : 8,908.11 = 5,553.82 : x
  2. Step 2: Convert to fraction form
    6,453.39/8,908.11 = 5,553.82/x
  3. Step 3: Cross multiply
    6,453.39x = 8,908.11 × 5,553.82
  4. Step 4: Simplify right side
    6,453.39x = 49,474,039.48
  5. Step 5: Solve for x
    x = 49,474,039.48/6,453.39
  6. Step 6: Final answer
    x = 7,666.36

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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.