Home / 8,650.85-12,968.48-3,102.89

Finding the Fourth Proportional to 8,650.85, 12,968.48 and 3,102.89

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Solution

The fourth proportional to 8,650.85, 12,968.48 and 3,102.89 is: 4,651.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.85 : 12,968.48 = 3,102.89 : x
  2. Step 2: Convert to fraction form
    8,650.85/12,968.48 = 3,102.89/x
  3. Step 3: Cross multiply
    8,650.85x = 12,968.48 × 3,102.89
  4. Step 4: Simplify right side
    8,650.85x = 40,239,797.54
  5. Step 5: Solve for x
    x = 40,239,797.54/8,650.85
  6. Step 6: Final answer
    x = 4,651.55

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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.