Parker is planning to build a playhouse for his sister. The scaled model below gives the reduced measures for width and height. Hight 10 cm and base 22 cm. The yard space is large enough to have a playhouse that has a width of 3.5 meters. If Parker wants to keep the playhouse in proportion to the model, what cross multiplication of the proportion should he use to find the height?

Question

Francisco Harrison

Mathematics

18 January, 08:53

Parker is planning to build a playhouse for his sister. The scaled model below gives the reduced measures for width and height. Hight 10 cm and base 22 cm. The yard space is large enough to have a playhouse that has a width of 3.5 meters. If Parker wants to keep the playhouse in proportion to the model, what cross multiplication of the proportion should he use to find the height?

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Johnny · Answer 1

22 centimeter converted to meters is 0.22, dividing 0.22m by 3.5 we get 15.90909090909091 (15.9)

If we convert 10cm to meters and then multiply it by 15.9 we get 1.59m

So to keep it proportional he needs the hight to be 1.59m