Home / 8,405.19-12,601.94-3,722.64

Finding the Fourth Proportional to 8,405.19, 12,601.94 and 3,722.64

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Solution

The fourth proportional to 8,405.19, 12,601.94 and 3,722.64 is: 5,581.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.19 : 12,601.94 = 3,722.64 : x
  2. Step 2: Convert to fraction form
    8,405.19/12,601.94 = 3,722.64/x
  3. Step 3: Cross multiply
    8,405.19x = 12,601.94 × 3,722.64
  4. Step 4: Simplify right side
    8,405.19x = 46,912,467.31
  5. Step 5: Solve for x
    x = 46,912,467.31/8,405.19
  6. Step 6: Final answer
    x = 5,581.37

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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.