Home / 13,626.08-20,439.09-3,765.33

Finding the Fourth Proportional to 13,626.08, 20,439.09 and 3,765.33

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Solution

The fourth proportional to 13,626.08, 20,439.09 and 3,765.33 is: 5,647.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.08 : 20,439.09 = 3,765.33 : x
  2. Step 2: Convert to fraction form
    13,626.08/20,439.09 = 3,765.33/x
  3. Step 3: Cross multiply
    13,626.08x = 20,439.09 × 3,765.33
  4. Step 4: Simplify right side
    13,626.08x = 76,959,918.75
  5. Step 5: Solve for x
    x = 76,959,918.75/13,626.08
  6. Step 6: Final answer
    x = 5,647.99

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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.