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Finding the Fourth Proportional to 12,635.29, 17,436.90 and 6,969.94

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Solution

The fourth proportional to 12,635.29, 17,436.90 and 6,969.94 is: 9,618.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.29 : 17,436.90 = 6,969.94 : x
  2. Step 2: Convert to fraction form
    12,635.29/17,436.90 = 6,969.94/x
  3. Step 3: Cross multiply
    12,635.29x = 17,436.90 × 6,969.94
  4. Step 4: Simplify right side
    12,635.29x = 121,534,059.60
  5. Step 5: Solve for x
    x = 121,534,059.60/12,635.29
  6. Step 6: Final answer
    x = 9,618.62

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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.