Home / 8,218.83-12,319.74-3,832.68

Finding the Fourth Proportional to 8,218.83, 12,319.74 and 3,832.68

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Solution

The fourth proportional to 8,218.83, 12,319.74 and 3,832.68 is: 5,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.83 : 12,319.74 = 3,832.68 : x
  2. Step 2: Convert to fraction form
    8,218.83/12,319.74 = 3,832.68/x
  3. Step 3: Cross multiply
    8,218.83x = 12,319.74 × 3,832.68
  4. Step 4: Simplify right side
    8,218.83x = 47,217,621.10
  5. Step 5: Solve for x
    x = 47,217,621.10/8,218.83
  6. Step 6: Final answer
    x = 5,745.05

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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.