Home / 12,213.56-18,322.97-3,780.04

Finding the Fourth Proportional to 12,213.56, 18,322.97 and 3,780.04

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Solution

The fourth proportional to 12,213.56, 18,322.97 and 3,780.04 is: 5,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.56 : 18,322.97 = 3,780.04 : x
  2. Step 2: Convert to fraction form
    12,213.56/18,322.97 = 3,780.04/x
  3. Step 3: Cross multiply
    12,213.56x = 18,322.97 × 3,780.04
  4. Step 4: Simplify right side
    12,213.56x = 69,261,494.81
  5. Step 5: Solve for x
    x = 69,261,494.81/12,213.56
  6. Step 6: Final answer
    x = 5,670.87

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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.