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Finding the Fourth Proportional to 8,450.94, 11,655.45 and 6,458.34

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Solution

The fourth proportional to 8,450.94, 11,655.45 and 6,458.34 is: 8,907.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.94 : 11,655.45 = 6,458.34 : x
  2. Step 2: Convert to fraction form
    8,450.94/11,655.45 = 6,458.34/x
  3. Step 3: Cross multiply
    8,450.94x = 11,655.45 × 6,458.34
  4. Step 4: Simplify right side
    8,450.94x = 75,274,858.95
  5. Step 5: Solve for x
    x = 75,274,858.95/8,450.94
  6. Step 6: Final answer
    x = 8,907.28

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