Home / 8,745.99-12,083.57-6,105.20

Finding the Fourth Proportional to 8,745.99, 12,083.57 and 6,105.20

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Solution

The fourth proportional to 8,745.99, 12,083.57 and 6,105.20 is: 8,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.99 : 12,083.57 = 6,105.20 : x
  2. Step 2: Convert to fraction form
    8,745.99/12,083.57 = 6,105.20/x
  3. Step 3: Cross multiply
    8,745.99x = 12,083.57 × 6,105.20
  4. Step 4: Simplify right side
    8,745.99x = 73,772,520.62
  5. Step 5: Solve for x
    x = 73,772,520.62/8,745.99
  6. Step 6: Final answer
    x = 8,435.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.