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Finding the Fourth Proportional to 11,770.45, 16,243.20 and 6,465.22

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Solution

The fourth proportional to 11,770.45, 16,243.20 and 6,465.22 is: 8,921.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,770.45 : 16,243.20 = 6,465.22 : x
  2. Step 2: Convert to fraction form
    11,770.45/16,243.20 = 6,465.22/x
  3. Step 3: Cross multiply
    11,770.45x = 16,243.20 × 6,465.22
  4. Step 4: Simplify right side
    11,770.45x = 105,015,820.90
  5. Step 5: Solve for x
    x = 105,015,820.90/11,770.45
  6. Step 6: Final answer
    x = 8,921.99

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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.