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Finding the Fourth Proportional to 13,166.79, 19,755.40 and 5,772.41

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Solution

The fourth proportional to 13,166.79, 19,755.40 and 5,772.41 is: 8,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.79 : 19,755.40 = 5,772.41 : x
  2. Step 2: Convert to fraction form
    13,166.79/19,755.40 = 5,772.41/x
  3. Step 3: Cross multiply
    13,166.79x = 19,755.40 × 5,772.41
  4. Step 4: Simplify right side
    13,166.79x = 114,036,268.51
  5. Step 5: Solve for x
    x = 114,036,268.51/13,166.79
  6. Step 6: Final answer
    x = 8,660.90

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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.