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Finding the Fourth Proportional to 13,194.45, 18,208.35 and 7,226.12

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Solution

The fourth proportional to 13,194.45, 18,208.35 and 7,226.12 is: 9,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.45 : 18,208.35 = 7,226.12 : x
  2. Step 2: Convert to fraction form
    13,194.45/18,208.35 = 7,226.12/x
  3. Step 3: Cross multiply
    13,194.45x = 18,208.35 × 7,226.12
  4. Step 4: Simplify right side
    13,194.45x = 131,575,767.62
  5. Step 5: Solve for x
    x = 131,575,767.62/13,194.45
  6. Step 6: Final answer
    x = 9,972.05

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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.