Home / 8,783.91-13,173.97-2,780.46

Finding the Fourth Proportional to 8,783.91, 13,173.97 and 2,780.46

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Solution

The fourth proportional to 8,783.91, 13,173.97 and 2,780.46 is: 4,170.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.91 : 13,173.97 = 2,780.46 : x
  2. Step 2: Convert to fraction form
    8,783.91/13,173.97 = 2,780.46/x
  3. Step 3: Cross multiply
    8,783.91x = 13,173.97 × 2,780.46
  4. Step 4: Simplify right side
    8,783.91x = 36,629,696.63
  5. Step 5: Solve for x
    x = 36,629,696.63/8,783.91
  6. Step 6: Final answer
    x = 4,170.09

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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.