Home / 8,629.56-12,944.35-2,787.03

Finding the Fourth Proportional to 8,629.56, 12,944.35 and 2,787.03

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Solution

The fourth proportional to 8,629.56, 12,944.35 and 2,787.03 is: 4,180.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.56 : 12,944.35 = 2,787.03 : x
  2. Step 2: Convert to fraction form
    8,629.56/12,944.35 = 2,787.03/x
  3. Step 3: Cross multiply
    8,629.56x = 12,944.35 × 2,787.03
  4. Step 4: Simplify right side
    8,629.56x = 36,076,291.78
  5. Step 5: Solve for x
    x = 36,076,291.78/8,629.56
  6. Step 6: Final answer
    x = 4,180.55

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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.