Home / 8,780.63-13,169.94-2,206.83

Finding the Fourth Proportional to 8,780.63, 13,169.94 and 2,206.83

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Solution

The fourth proportional to 8,780.63, 13,169.94 and 2,206.83 is: 3,309.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.63 : 13,169.94 = 2,206.83 : x
  2. Step 2: Convert to fraction form
    8,780.63/13,169.94 = 2,206.83/x
  3. Step 3: Cross multiply
    8,780.63x = 13,169.94 × 2,206.83
  4. Step 4: Simplify right side
    8,780.63x = 29,063,818.69
  5. Step 5: Solve for x
    x = 29,063,818.69/8,780.63
  6. Step 6: Final answer
    x = 3,309.99

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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.