Home / 8,291.37-12,433.41-4,131.21

Finding the Fourth Proportional to 8,291.37, 12,433.41 and 4,131.21

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Solution

The fourth proportional to 8,291.37, 12,433.41 and 4,131.21 is: 6,195.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.37 : 12,433.41 = 4,131.21 : x
  2. Step 2: Convert to fraction form
    8,291.37/12,433.41 = 4,131.21/x
  3. Step 3: Cross multiply
    8,291.37x = 12,433.41 × 4,131.21
  4. Step 4: Simplify right side
    8,291.37x = 51,365,027.73
  5. Step 5: Solve for x
    x = 51,365,027.73/8,291.37
  6. Step 6: Final answer
    x = 6,195.00

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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.