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Finding the Fourth Proportional to 14,078.18, 21,098.66 and 7,401.04

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Solution

The fourth proportional to 14,078.18, 21,098.66 and 7,401.04 is: 11,091.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.18 : 21,098.66 = 7,401.04 : x
  2. Step 2: Convert to fraction form
    14,078.18/21,098.66 = 7,401.04/x
  3. Step 3: Cross multiply
    14,078.18x = 21,098.66 × 7,401.04
  4. Step 4: Simplify right side
    14,078.18x = 156,151,936.85
  5. Step 5: Solve for x
    x = 156,151,936.85/14,078.18
  6. Step 6: Final answer
    x = 11,091.77

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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.