Home / 8,512.35-12,768.56-2,589.30

Finding the Fourth Proportional to 8,512.35, 12,768.56 and 2,589.30

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Solution

The fourth proportional to 8,512.35, 12,768.56 and 2,589.30 is: 3,883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.35 : 12,768.56 = 2,589.30 : x
  2. Step 2: Convert to fraction form
    8,512.35/12,768.56 = 2,589.30/x
  3. Step 3: Cross multiply
    8,512.35x = 12,768.56 × 2,589.30
  4. Step 4: Simplify right side
    8,512.35x = 33,061,619.46
  5. Step 5: Solve for x
    x = 33,061,619.46/8,512.35
  6. Step 6: Final answer
    x = 3,883.96

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1.5x scale

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.