Home / 8,440.36-12,648.70-3,993.32

Finding the Fourth Proportional to 8,440.36, 12,648.70 and 3,993.32

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Solution

The fourth proportional to 8,440.36, 12,648.70 and 3,993.32 is: 5,984.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.36 : 12,648.70 = 3,993.32 : x
  2. Step 2: Convert to fraction form
    8,440.36/12,648.70 = 3,993.32/x
  3. Step 3: Cross multiply
    8,440.36x = 12,648.70 × 3,993.32
  4. Step 4: Simplify right side
    8,440.36x = 50,510,306.68
  5. Step 5: Solve for x
    x = 50,510,306.68/8,440.36
  6. Step 6: Final answer
    x = 5,984.38

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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.