Home / 8,138.07-12,205.74-2,293.31

Finding the Fourth Proportional to 8,138.07, 12,205.74 and 2,293.31

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Solution

The fourth proportional to 8,138.07, 12,205.74 and 2,293.31 is: 3,439.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.07 : 12,205.74 = 2,293.31 : x
  2. Step 2: Convert to fraction form
    8,138.07/12,205.74 = 2,293.31/x
  3. Step 3: Cross multiply
    8,138.07x = 12,205.74 × 2,293.31
  4. Step 4: Simplify right side
    8,138.07x = 27,991,571.81
  5. Step 5: Solve for x
    x = 27,991,571.81/8,138.07
  6. Step 6: Final answer
    x = 3,439.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.