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Finding the Fourth Proportional to 8,958.39, 13,369.83 and 8,725.11

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Solution

The fourth proportional to 8,958.39, 13,369.83 and 8,725.11 is: 13,021.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.39 : 13,369.83 = 8,725.11 : x
  2. Step 2: Convert to fraction form
    8,958.39/13,369.83 = 8,725.11/x
  3. Step 3: Cross multiply
    8,958.39x = 13,369.83 × 8,725.11
  4. Step 4: Simplify right side
    8,958.39x = 116,653,237.43
  5. Step 5: Solve for x
    x = 116,653,237.43/8,958.39
  6. Step 6: Final answer
    x = 13,021.67

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.