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Finding the Fourth Proportional to 10,367.70, 15,552.36 and 5,105.54

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Solution

The fourth proportional to 10,367.70, 15,552.36 and 5,105.54 is: 7,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.70 : 15,552.36 = 5,105.54 : x
  2. Step 2: Convert to fraction form
    10,367.70/15,552.36 = 5,105.54/x
  3. Step 3: Cross multiply
    10,367.70x = 15,552.36 × 5,105.54
  4. Step 4: Simplify right side
    10,367.70x = 79,403,118.31
  5. Step 5: Solve for x
    x = 79,403,118.31/10,367.70
  6. Step 6: Final answer
    x = 7,658.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.