Home / 8,640.37-11,923.09-4,863.75

Finding the Fourth Proportional to 8,640.37, 11,923.09 and 4,863.75

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Solution

The fourth proportional to 8,640.37, 11,923.09 and 4,863.75 is: 6,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.37 : 11,923.09 = 4,863.75 : x
  2. Step 2: Convert to fraction form
    8,640.37/11,923.09 = 4,863.75/x
  3. Step 3: Cross multiply
    8,640.37x = 11,923.09 × 4,863.75
  4. Step 4: Simplify right side
    8,640.37x = 57,990,928.99
  5. Step 5: Solve for x
    x = 57,990,928.99/8,640.37
  6. Step 6: Final answer
    x = 6,711.63

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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.