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Finding the Fourth Proportional to 13,890.96, 19,170.54 and 9,167.04

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Solution

The fourth proportional to 13,890.96, 19,170.54 and 9,167.04 is: 12,651.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.96 : 19,170.54 = 9,167.04 : x
  2. Step 2: Convert to fraction form
    13,890.96/19,170.54 = 9,167.04/x
  3. Step 3: Cross multiply
    13,890.96x = 19,170.54 × 9,167.04
  4. Step 4: Simplify right side
    13,890.96x = 175,737,107.00
  5. Step 5: Solve for x
    x = 175,737,107.00/13,890.96
  6. Step 6: Final answer
    x = 12,651.19

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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.