Home / 8,650.85-12,976.28-6,190.47

Finding the Fourth Proportional to 8,650.85, 12,976.28 and 6,190.47

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Solution

The fourth proportional to 8,650.85, 12,976.28 and 6,190.47 is: 9,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.85 : 12,976.28 = 6,190.47 : x
  2. Step 2: Convert to fraction form
    8,650.85/12,976.28 = 6,190.47/x
  3. Step 3: Cross multiply
    8,650.85x = 12,976.28 × 6,190.47
  4. Step 4: Simplify right side
    8,650.85x = 80,329,241.10
  5. Step 5: Solve for x
    x = 80,329,241.10/8,650.85
  6. Step 6: Final answer
    x = 9,285.71

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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.