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Finding the Fourth Proportional to 8,151.93, 12,235.23 and 3,771.90

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Solution

The fourth proportional to 8,151.93, 12,235.23 and 3,771.90 is: 5,661.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.93 : 12,235.23 = 3,771.90 : x
  2. Step 2: Convert to fraction form
    8,151.93/12,235.23 = 3,771.90/x
  3. Step 3: Cross multiply
    8,151.93x = 12,235.23 × 3,771.90
  4. Step 4: Simplify right side
    8,151.93x = 46,150,064.04
  5. Step 5: Solve for x
    x = 46,150,064.04/8,151.93
  6. Step 6: Final answer
    x = 5,661.24

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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.