If
a
b
=
|
c
d
then, a × d = b × c
|
If
a
b
=
|
c
d
then, a × d = b × c
|
Solve for x if
5
x
|
=
10
16
|
The proportion becomes
5
8
|
=
10
16
|
5
x
|
=
10
16
|
Solve for n if
8
10
|
=
n
25
|
200
10
|
=
10n
10
|
If
a
b
|
=
c
d
then,
|
a + b
b
|
=
c + d
d
|
x - 8
8
|
=
6
4
|
x - 8 + 8
8
|
=
6 + 4
4
|
x
8
|
=
10
4
|
If
x
y
|
=
x
4
then, y = 4
|
For instance If
50
y
|
=
50
100
then, y = 100
|
If
18
y
|
=
x
y
then, x = 18
|
If
a
b
|
=
c
d
then,
|
a + c
b + d
|
=
a
b
|
a + c
b + d
|
=
a
b
|
Say you have
x + 2
8 + 4
|
=
x
8
|
It is equivalent to
x
8
|
=
2
4
|
Solve for x if
5
x
|
=
10
16
|
The proportion becomes
5
8
|
=
10
16
|
5
x
|
=
10
16
|
Solve for n if
8
10
|
=
n
25
|
200
10
|
=
10n
10
|
If
a
b
|
=
c
d
then,
|
a + b
b
|
=
c + d
d
|
x - 8
8
|
=
6
4
|
x - 8 + 8
8
|
=
6 + 4
4
|
x
8
|
=
10
4
|
If
x
y
|
=
x
4
then, y = 4
|
If
50
y
|
=
50
100
then, y = 100
|
If
18
y
|
=
x
y
then, x = 18
|
If
a
b
|
=
c
d
then,
|
a + c
b + d
|
=
a
b
|
a + c
b + d
|
=
a
b
|
Say you have
x + 2
8 + 4
|
=
x
8
|
It is equivalent to
x
8
|
=
2
4
|
Jul 02, 22 07:53 AM
This lesson will show clearly how to derive the formula to find the pressure in a liquid.