Home / 12,622.25-18,933.74-3,388.25

Finding the Fourth Proportional to 12,622.25, 18,933.74 and 3,388.25

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Solution

The fourth proportional to 12,622.25, 18,933.74 and 3,388.25 is: 5,082.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.25 : 18,933.74 = 3,388.25 : x
  2. Step 2: Convert to fraction form
    12,622.25/18,933.74 = 3,388.25/x
  3. Step 3: Cross multiply
    12,622.25x = 18,933.74 × 3,388.25
  4. Step 4: Simplify right side
    12,622.25x = 64,152,244.56
  5. Step 5: Solve for x
    x = 64,152,244.56/12,622.25
  6. Step 6: Final answer
    x = 5,082.47

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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.