Following are a number of back-translations as well as a sample translation for translators of Isaiah 15:4:

• Kupsabiny: “The people of Heshbon and those of Elealeh shall be shouting
  and the screams/shouting will be heard in the city of Jahaz.
  The soldiers of Moab will be shouting,
  they shall be afraid and the strength disappear.” (Source: Kupsabiny Back Translation)
• Newari: “Heshbon and Elealeh will weep loudly.
  The sound of their weeping is to be heard all the way to Jahaz.
  So the armed men of Moab [lit.: the men who hold weapons]
  tremble, crying out loudly, weeping, [with] their hearts beating [and] fluttering.” (Source: Newari Back Translation)
• Hiligaynon: “Those of/from-Heshbon and those of/from-Eleale are-crying, and this can-be-heard until Jahaz. Therefore the soldiers of Moab shout/scream with fear.” (Source: Hiligaynon Back Translation)
• English: “The people of Heshbon city and Elealeh towns in the north of Moab will cry out;
  people as far away as Jahaz town in the south will hear them wailing.
  Therefore the soldiers of Moab will tremble and cry out
  and they will be very afraid.” (Source: Translation for Translators)