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Finding the Fourth Proportional to 13,954.10, 20,906.55 and 7,365.77

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Solution

The fourth proportional to 13,954.10, 20,906.55 and 7,365.77 is: 11,035.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.10 : 20,906.55 = 7,365.77 : x
  2. Step 2: Convert to fraction form
    13,954.10/20,906.55 = 7,365.77/x
  3. Step 3: Cross multiply
    13,954.10x = 20,906.55 × 7,365.77
  4. Step 4: Simplify right side
    13,954.10x = 153,992,838.79
  5. Step 5: Solve for x
    x = 153,992,838.79/13,954.10
  6. Step 6: Final answer
    x = 11,035.67

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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.