Home / 6,400.09-8,826.60-4,161.15

Finding the Fourth Proportional to 6,400.09, 8,826.60 and 4,161.15

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Solution

The fourth proportional to 6,400.09, 8,826.60 and 4,161.15 is: 5,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400.09 : 8,826.60 = 4,161.15 : x
  2. Step 2: Convert to fraction form
    6,400.09/8,826.60 = 4,161.15/x
  3. Step 3: Cross multiply
    6,400.09x = 8,826.60 × 4,161.15
  4. Step 4: Simplify right side
    6,400.09x = 36,728,822.19
  5. Step 5: Solve for x
    x = 36,728,822.19/6,400.09
  6. Step 6: Final answer
    x = 5,738.80

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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.