Home / 13,372.05-18,450.57-8,066.79

Finding the Fourth Proportional to 13,372.05, 18,450.57 and 8,066.79

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Solution

The fourth proportional to 13,372.05, 18,450.57 and 8,066.79 is: 11,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.05 : 18,450.57 = 8,066.79 : x
  2. Step 2: Convert to fraction form
    13,372.05/18,450.57 = 8,066.79/x
  3. Step 3: Cross multiply
    13,372.05x = 18,450.57 × 8,066.79
  4. Step 4: Simplify right side
    13,372.05x = 148,836,873.57
  5. Step 5: Solve for x
    x = 148,836,873.57/13,372.05
  6. Step 6: Final answer
    x = 11,130.45

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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.