int main(){
	int n,m,i;
  	int *data,total=0,cutOff,count=0;
  
  	data=(int*)malloc(sizeof(int)*n);
  
  	for(i=0;i<n;i++){
    	scanf("%d",&data[i]);
      	total+=data[i];
    }
  	cutOff=total/(4*m);
  
  	for(i=0;i<n;i++){
    	if(data[i]>=cutOff)
          	count+=1;
    }
  
  	if(count>=m)
      	printf("Yes");
  	else
      	printf("No");
  
  

}