Home / 8,679.35-12,999.57-6,725.63

Finding the Fourth Proportional to 8,679.35, 12,999.57 and 6,725.63

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Solution

The fourth proportional to 8,679.35, 12,999.57 and 6,725.63 is: 10,073.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.35 : 12,999.57 = 6,725.63 : x
  2. Step 2: Convert to fraction form
    8,679.35/12,999.57 = 6,725.63/x
  3. Step 3: Cross multiply
    8,679.35x = 12,999.57 × 6,725.63
  4. Step 4: Simplify right side
    8,679.35x = 87,430,297.98
  5. Step 5: Solve for x
    x = 87,430,297.98/8,679.35
  6. Step 6: Final answer
    x = 10,073.37

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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.