| k | × | 1 | × | 126 | = | 18 25 | × | 30 | + | 252 | × | 18 25 |
| Left side of the equation = | k | × | 126 |
| 126 | k | = | 18 25 | × | 30 | + | 252 | × | 18 25 |
| Right side of the equation = | 108 5 | + | 4536 25 |
| = | 5076 25 |
| 126 | k | = | 5076 25 |
| k | = | 5076 25 | ÷ | 126 |
| = | 5076 25 | × | 1 126 |
| = | 282 25 | × | 1 7 |
| k | = | 282 175 |
| k | = | 1.611429 |