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Finding the Fourth Proportional to 10,162.26, 15,202.69 and 8,790.32

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Solution

The fourth proportional to 10,162.26, 15,202.69 and 8,790.32 is: 13,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,162.26 : 15,202.69 = 8,790.32 : x
  2. Step 2: Convert to fraction form
    10,162.26/15,202.69 = 8,790.32/x
  3. Step 3: Cross multiply
    10,162.26x = 15,202.69 × 8,790.32
  4. Step 4: Simplify right side
    10,162.26x = 133,636,525.99
  5. Step 5: Solve for x
    x = 133,636,525.99/10,162.26
  6. Step 6: Final answer
    x = 13,150.28

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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.