Home / 8,939.60-12,336.61-4,960.70

Finding the Fourth Proportional to 8,939.60, 12,336.61 and 4,960.70

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Solution

The fourth proportional to 8,939.60, 12,336.61 and 4,960.70 is: 6,845.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.60 : 12,336.61 = 4,960.70 : x
  2. Step 2: Convert to fraction form
    8,939.60/12,336.61 = 4,960.70/x
  3. Step 3: Cross multiply
    8,939.60x = 12,336.61 × 4,960.70
  4. Step 4: Simplify right side
    8,939.60x = 61,198,272.10
  5. Step 5: Solve for x
    x = 61,198,272.10/8,939.60
  6. Step 6: Final answer
    x = 6,845.75

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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.