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Finding the Fourth Proportional to 13,060.54, 18,023.97 and 7,318.22

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Solution

The fourth proportional to 13,060.54, 18,023.97 and 7,318.22 is: 10,099.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060.54 : 18,023.97 = 7,318.22 : x
  2. Step 2: Convert to fraction form
    13,060.54/18,023.97 = 7,318.22/x
  3. Step 3: Cross multiply
    13,060.54x = 18,023.97 × 7,318.22
  4. Step 4: Simplify right side
    13,060.54x = 131,903,377.73
  5. Step 5: Solve for x
    x = 131,903,377.73/13,060.54
  6. Step 6: Final answer
    x = 10,099.38

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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.