Home / 8,455.12-12,682.80-2,611

Finding the Fourth Proportional to 8,455.12, 12,682.80 and 2,611

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Solution

The fourth proportional to 8,455.12, 12,682.80 and 2,611 is: 3,916.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.12 : 12,682.80 = 2,611 : x
  2. Step 2: Convert to fraction form
    8,455.12/12,682.80 = 2,611/x
  3. Step 3: Cross multiply
    8,455.12x = 12,682.80 × 2,611
  4. Step 4: Simplify right side
    8,455.12x = 33,114,790.80
  5. Step 5: Solve for x
    x = 33,114,790.80/8,455.12
  6. Step 6: Final answer
    x = 3,916.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.