Home / 8,519.20-12,780.70-2,596.62

Finding the Fourth Proportional to 8,519.20, 12,780.70 and 2,596.62

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Solution

The fourth proportional to 8,519.20, 12,780.70 and 2,596.62 is: 3,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.20 : 12,780.70 = 2,596.62 : x
  2. Step 2: Convert to fraction form
    8,519.20/12,780.70 = 2,596.62/x
  3. Step 3: Cross multiply
    8,519.20x = 12,780.70 × 2,596.62
  4. Step 4: Simplify right side
    8,519.20x = 33,186,614.74
  5. Step 5: Solve for x
    x = 33,186,614.74/8,519.20
  6. Step 6: Final answer
    x = 3,895.51

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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.