Home / 11,990.40-16,546.34-7,516.56

Finding the Fourth Proportional to 11,990.40, 16,546.34 and 7,516.56

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Solution

The fourth proportional to 11,990.40, 16,546.34 and 7,516.56 is: 10,372.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.40 : 16,546.34 = 7,516.56 : x
  2. Step 2: Convert to fraction form
    11,990.40/16,546.34 = 7,516.56/x
  3. Step 3: Cross multiply
    11,990.40x = 16,546.34 × 7,516.56
  4. Step 4: Simplify right side
    11,990.40x = 124,371,557.39
  5. Step 5: Solve for x
    x = 124,371,557.39/11,990.40
  6. Step 6: Final answer
    x = 10,372.59

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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.