Home / 8,715.83-12,028.87-5,179.04

Finding the Fourth Proportional to 8,715.83, 12,028.87 and 5,179.04

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Solution

The fourth proportional to 8,715.83, 12,028.87 and 5,179.04 is: 7,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.83 : 12,028.87 = 5,179.04 : x
  2. Step 2: Convert to fraction form
    8,715.83/12,028.87 = 5,179.04/x
  3. Step 3: Cross multiply
    8,715.83x = 12,028.87 × 5,179.04
  4. Step 4: Simplify right side
    8,715.83x = 62,297,998.88
  5. Step 5: Solve for x
    x = 62,297,998.88/8,715.83
  6. Step 6: Final answer
    x = 7,147.68

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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.