Home / 18,211.72-27,284.46-12,653.32

Finding the Fourth Proportional to 18,211.72, 27,284.46 and 12,653.32

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Solution

The fourth proportional to 18,211.72, 27,284.46 and 12,653.32 is: 18,956.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.72 : 27,284.46 = 12,653.32 : x
  2. Step 2: Convert to fraction form
    18,211.72/27,284.46 = 12,653.32/x
  3. Step 3: Cross multiply
    18,211.72x = 27,284.46 × 12,653.32
  4. Step 4: Simplify right side
    18,211.72x = 345,239,003.41
  5. Step 5: Solve for x
    x = 345,239,003.41/18,211.72
  6. Step 6: Final answer
    x = 18,956.97

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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.