Home / 8,939.37-12,336.21-4,960.47

Finding the Fourth Proportional to 8,939.37, 12,336.21 and 4,960.47

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Solution

The fourth proportional to 8,939.37, 12,336.21 and 4,960.47 is: 6,845.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.37 : 12,336.21 = 4,960.47 : x
  2. Step 2: Convert to fraction form
    8,939.37/12,336.21 = 4,960.47/x
  3. Step 3: Cross multiply
    8,939.37x = 12,336.21 × 4,960.47
  4. Step 4: Simplify right side
    8,939.37x = 61,193,399.62
  5. Step 5: Solve for x
    x = 61,193,399.62/8,939.37
  6. Step 6: Final answer
    x = 6,845.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.