Home / 13,618.77-20,399.43-6,229.44

Finding the Fourth Proportional to 13,618.77, 20,399.43 and 6,229.44

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Solution

The fourth proportional to 13,618.77, 20,399.43 and 6,229.44 is: 9,331.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.77 : 20,399.43 = 6,229.44 : x
  2. Step 2: Convert to fraction form
    13,618.77/20,399.43 = 6,229.44/x
  3. Step 3: Cross multiply
    13,618.77x = 20,399.43 × 6,229.44
  4. Step 4: Simplify right side
    13,618.77x = 127,077,025.22
  5. Step 5: Solve for x
    x = 127,077,025.22/13,618.77
  6. Step 6: Final answer
    x = 9,331.02

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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.