Home / 8,131.41-12,192.80-3,745.13

Finding the Fourth Proportional to 8,131.41, 12,192.80 and 3,745.13

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Solution

The fourth proportional to 8,131.41, 12,192.80 and 3,745.13 is: 5,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.41 : 12,192.80 = 3,745.13 : x
  2. Step 2: Convert to fraction form
    8,131.41/12,192.80 = 3,745.13/x
  3. Step 3: Cross multiply
    8,131.41x = 12,192.80 × 3,745.13
  4. Step 4: Simplify right side
    8,131.41x = 45,663,541.37
  5. Step 5: Solve for x
    x = 45,663,541.37/8,131.41
  6. Step 6: Final answer
    x = 5,615.70

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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.