Home / 8,518.83-12,780.28-2,675.44

Finding the Fourth Proportional to 8,518.83, 12,780.28 and 2,675.44

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Solution

The fourth proportional to 8,518.83, 12,780.28 and 2,675.44 is: 4,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.83 : 12,780.28 = 2,675.44 : x
  2. Step 2: Convert to fraction form
    8,518.83/12,780.28 = 2,675.44/x
  3. Step 3: Cross multiply
    8,518.83x = 12,780.28 × 2,675.44
  4. Step 4: Simplify right side
    8,518.83x = 34,192,872.32
  5. Step 5: Solve for x
    x = 34,192,872.32/8,518.83
  6. Step 6: Final answer
    x = 4,013.80

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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.