Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Club | Location | Stadium | Capacity | Current manager |
| --- | --- | --- | --- | --- |
| Flora | Tallinn | A. Le Coq Arena | 9300.0 | Pasi Rautiainen |
| Kalju | Tallinn | Hiiu Stadium | 500.0 | Fredo Getulio |
| Levadia | Tallinn | Kadrioru Stadium | 4750.0 | Igor Prins |
| Maag Tammeka | Tartu | Tamme Stadium | 2000.0 | Sergei Zamogilnõi |
| Sillamäe Kalev | Sillamäe | Sillamäe Kalevi Stadium | 2000.0 | Vadym Dobizha |
| Tallinna Kalev | Tallinn | Kalevi Keskstaadion | 12000.0 | Aavo Sarap |
| Trans | Narva | Kreenholmi Stadium | 3000.0 | Aleksei Yagudin |
| Tulevik | Viljandi | Viljandi linnastaadion | 2500.0 | Marko Lelov |
| TVMK | Tallinn | Kadrioru Stadium | 4750.0 | Sergei Ratnikov |
| Vaprus | Pärnu | Pärnu Kalevi Stadium | 1900.0 | Ants Kommussaar |
Question:
What is the capacity for the stadium of kadrioru stadium and a current manager of sergei ratnikov?
Answer:
4750.0