Home / 13,851.20-19,114.68-7,882.92

Finding the Fourth Proportional to 13,851.20, 19,114.68 and 7,882.92

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Solution

The fourth proportional to 13,851.20, 19,114.68 and 7,882.92 is: 10,878.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.20 : 19,114.68 = 7,882.92 : x
  2. Step 2: Convert to fraction form
    13,851.20/19,114.68 = 7,882.92/x
  3. Step 3: Cross multiply
    13,851.20x = 19,114.68 × 7,882.92
  4. Step 4: Simplify right side
    13,851.20x = 150,679,493.27
  5. Step 5: Solve for x
    x = 150,679,493.27/13,851.20
  6. Step 6: Final answer
    x = 10,878.44

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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.