Home / 7,961.15-10,986.38-4,424.36

Finding the Fourth Proportional to 7,961.15, 10,986.38 and 4,424.36

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Solution

The fourth proportional to 7,961.15, 10,986.38 and 4,424.36 is: 6,105.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.15 : 10,986.38 = 4,424.36 : x
  2. Step 2: Convert to fraction form
    7,961.15/10,986.38 = 4,424.36/x
  3. Step 3: Cross multiply
    7,961.15x = 10,986.38 × 4,424.36
  4. Step 4: Simplify right side
    7,961.15x = 48,607,700.22
  5. Step 5: Solve for x
    x = 48,607,700.22/7,961.15
  6. Step 6: Final answer
    x = 6,105.61

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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.