Home / 17,790.72-26,630.16-12,211.44

Finding the Fourth Proportional to 17,790.72, 26,630.16 and 12,211.44

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Solution

The fourth proportional to 17,790.72, 26,630.16 and 12,211.44 is: 18,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,790.72 : 26,630.16 = 12,211.44 : x
  2. Step 2: Convert to fraction form
    17,790.72/26,630.16 = 12,211.44/x
  3. Step 3: Cross multiply
    17,790.72x = 26,630.16 × 12,211.44
  4. Step 4: Simplify right side
    17,790.72x = 325,192,601.03
  5. Step 5: Solve for x
    x = 325,192,601.03/17,790.72
  6. Step 6: Final answer
    x = 18,278.78

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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.