Home / 8,625.42-12,936.31-3,077.73

Finding the Fourth Proportional to 8,625.42, 12,936.31 and 3,077.73

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Solution

The fourth proportional to 8,625.42, 12,936.31 and 3,077.73 is: 4,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.42 : 12,936.31 = 3,077.73 : x
  2. Step 2: Convert to fraction form
    8,625.42/12,936.31 = 3,077.73/x
  3. Step 3: Cross multiply
    8,625.42x = 12,936.31 × 3,077.73
  4. Step 4: Simplify right side
    8,625.42x = 39,814,461.68
  5. Step 5: Solve for x
    x = 39,814,461.68/8,625.42
  6. Step 6: Final answer
    x = 4,615.94

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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.