Delisa is designing a website that will be viewable on both computers and mobile devices, so the website as it is seen on a mobile device is proportional to the website as it is seen on a computer. The diagonal of Delisa's computer monitor is 21 inches, and the diagonal of Delisa's tablet is 9.9 inches.
If an image is 22 centimeters wide on the website when it's displayed on Delisa's computer, how wide should the image be on the tablet? Round to the nearest tenth of a millimeter, if necessary.
To find the proportional width of the image on the tablet, we can set up a ratio using the diagonal measurements of the devices.
Let x represent the width of the image on the tablet.
21 inches (computer diagonal) / 9.9 inches (tablet diagonal) = 22 centimeters (computer image width) / x (tablet image width)
Cross multiply to solve for x:
21 * x = 9.9 * 22
21x = 217.8
x = 217.8 / 21
x ≈ 10.3714
Therefore, the image should be approximately 10.4 centimeters wide on the tablet.