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Finding the Fourth Proportional to 10,868.74, 15,006.33 and 7,336.90

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Solution

The fourth proportional to 10,868.74, 15,006.33 and 7,336.90 is: 10,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,868.74 : 15,006.33 = 7,336.90 : x
  2. Step 2: Convert to fraction form
    10,868.74/15,006.33 = 7,336.90/x
  3. Step 3: Cross multiply
    10,868.74x = 15,006.33 × 7,336.90
  4. Step 4: Simplify right side
    10,868.74x = 110,099,942.58
  5. Step 5: Solve for x
    x = 110,099,942.58/10,868.74
  6. Step 6: Final answer
    x = 10,129.96

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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.