Home / 8,518.83-12,778.29-2,675.91

Finding the Fourth Proportional to 8,518.83, 12,778.29 and 2,675.91

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Solution

The fourth proportional to 8,518.83, 12,778.29 and 2,675.91 is: 4,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.83 : 12,778.29 = 2,675.91 : x
  2. Step 2: Convert to fraction form
    8,518.83/12,778.29 = 2,675.91/x
  3. Step 3: Cross multiply
    8,518.83x = 12,778.29 × 2,675.91
  4. Step 4: Simplify right side
    8,518.83x = 34,193,553.99
  5. Step 5: Solve for x
    x = 34,193,553.99/8,518.83
  6. Step 6: Final answer
    x = 4,013.88

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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.