Home / 6,112.83-8,423.60-4,339.47

Finding the Fourth Proportional to 6,112.83, 8,423.60 and 4,339.47

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Solution

The fourth proportional to 6,112.83, 8,423.60 and 4,339.47 is: 5,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.83 : 8,423.60 = 4,339.47 : x
  2. Step 2: Convert to fraction form
    6,112.83/8,423.60 = 4,339.47/x
  3. Step 3: Cross multiply
    6,112.83x = 8,423.60 × 4,339.47
  4. Step 4: Simplify right side
    6,112.83x = 36,553,928.22
  5. Step 5: Solve for x
    x = 36,553,928.22/6,112.83
  6. Step 6: Final answer
    x = 5,979.87

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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.