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Finding the Fourth Proportional to 14,195.62, 21,279.66 and 7,958.62

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Solution

The fourth proportional to 14,195.62, 21,279.66 and 7,958.62 is: 11,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,195.62 : 21,279.66 = 7,958.62 : x
  2. Step 2: Convert to fraction form
    14,195.62/21,279.66 = 7,958.62/x
  3. Step 3: Cross multiply
    14,195.62x = 21,279.66 × 7,958.62
  4. Step 4: Simplify right side
    14,195.62x = 169,356,727.67
  5. Step 5: Solve for x
    x = 169,356,727.67/14,195.62
  6. Step 6: Final answer
    x = 11,930.21

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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.